<!DOCTYPE html>

<html lang="en">
<head><meta charset="utf-8"/>
<meta content="width=device-width, initial-scale=1.0" name="viewport"/>
<title>23wlw_base</title><script src="https://cdnjs.cloudflare.com/ajax/libs/require.js/2.1.10/require.min.js"></script>
<style type="text/css">
    pre { line-height: 125%; }
td.linenos .normal { color: inherit; background-color: transparent; padding-left: 5px; padding-right: 5px; }
span.linenos { color: inherit; background-color: transparent; padding-left: 5px; padding-right: 5px; }
td.linenos .special { color: #000000; background-color: #ffffc0; padding-left: 5px; padding-right: 5px; }
span.linenos.special { color: #000000; background-color: #ffffc0; padding-left: 5px; padding-right: 5px; }
.highlight .hll { background-color: var(--jp-cell-editor-active-background) }
.highlight { background: var(--jp-cell-editor-background); color: var(--jp-mirror-editor-variable-color) }
.highlight .c { color: var(--jp-mirror-editor-comment-color); font-style: italic } /* Comment */
.highlight .err { color: var(--jp-mirror-editor-error-color) } /* Error */
.highlight .k { color: var(--jp-mirror-editor-keyword-color); font-weight: bold } /* Keyword */
.highlight .o { color: var(--jp-mirror-editor-operator-color); font-weight: bold } /* Operator */
.highlight .p { color: var(--jp-mirror-editor-punctuation-color) } /* Punctuation */
.highlight .ch { color: var(--jp-mirror-editor-comment-color); font-style: italic } /* Comment.Hashbang */
.highlight .cm { color: var(--jp-mirror-editor-comment-color); font-style: italic } /* Comment.Multiline */
.highlight .cp { color: var(--jp-mirror-editor-comment-color); font-style: italic } /* Comment.Preproc */
.highlight .cpf { color: var(--jp-mirror-editor-comment-color); font-style: italic } /* Comment.PreprocFile */
.highlight .c1 { color: var(--jp-mirror-editor-comment-color); font-style: italic } /* Comment.Single */
.highlight .cs { color: var(--jp-mirror-editor-comment-color); font-style: italic } /* Comment.Special */
.highlight .kc { color: var(--jp-mirror-editor-keyword-color); font-weight: bold } /* Keyword.Constant */
.highlight .kd { color: var(--jp-mirror-editor-keyword-color); font-weight: bold } /* Keyword.Declaration */
.highlight .kn { color: var(--jp-mirror-editor-keyword-color); font-weight: bold } /* Keyword.Namespace */
.highlight .kp { color: var(--jp-mirror-editor-keyword-color); font-weight: bold } /* Keyword.Pseudo */
.highlight .kr { color: var(--jp-mirror-editor-keyword-color); font-weight: bold } /* Keyword.Reserved */
.highlight .kt { color: var(--jp-mirror-editor-keyword-color); font-weight: bold } /* Keyword.Type */
.highlight .m { color: var(--jp-mirror-editor-number-color) } /* Literal.Number */
.highlight .s { color: var(--jp-mirror-editor-string-color) } /* Literal.String */
.highlight .ow { color: var(--jp-mirror-editor-operator-color); font-weight: bold } /* Operator.Word */
.highlight .pm { color: var(--jp-mirror-editor-punctuation-color) } /* Punctuation.Marker */
.highlight .w { color: var(--jp-mirror-editor-variable-color) } /* Text.Whitespace */
.highlight .mb { color: var(--jp-mirror-editor-number-color) } /* Literal.Number.Bin */
.highlight .mf { color: var(--jp-mirror-editor-number-color) } /* Literal.Number.Float */
.highlight .mh { color: var(--jp-mirror-editor-number-color) } /* Literal.Number.Hex */
.highlight .mi { color: var(--jp-mirror-editor-number-color) } /* Literal.Number.Integer */
.highlight .mo { color: var(--jp-mirror-editor-number-color) } /* Literal.Number.Oct */
.highlight .sa { color: var(--jp-mirror-editor-string-color) } /* Literal.String.Affix */
.highlight .sb { color: var(--jp-mirror-editor-string-color) } /* Literal.String.Backtick */
.highlight .sc { color: var(--jp-mirror-editor-string-color) } /* Literal.String.Char */
.highlight .dl { color: var(--jp-mirror-editor-string-color) } /* Literal.String.Delimiter */
.highlight .sd { color: var(--jp-mirror-editor-string-color) } /* Literal.String.Doc */
.highlight .s2 { color: var(--jp-mirror-editor-string-color) } /* Literal.String.Double */
.highlight .se { color: var(--jp-mirror-editor-string-color) } /* Literal.String.Escape */
.highlight .sh { color: var(--jp-mirror-editor-string-color) } /* Literal.String.Heredoc */
.highlight .si { color: var(--jp-mirror-editor-string-color) } /* Literal.String.Interpol */
.highlight .sx { color: var(--jp-mirror-editor-string-color) } /* Literal.String.Other */
.highlight .sr { color: var(--jp-mirror-editor-string-color) } /* Literal.String.Regex */
.highlight .s1 { color: var(--jp-mirror-editor-string-color) } /* Literal.String.Single */
.highlight .ss { color: var(--jp-mirror-editor-string-color) } /* Literal.String.Symbol */
.highlight .il { color: var(--jp-mirror-editor-number-color) } /* Literal.Number.Integer.Long */
  </style>
<style type="text/css">
/*-----------------------------------------------------------------------------
| Copyright (c) Jupyter Development Team.
| Distributed under the terms of the Modified BSD License.
|----------------------------------------------------------------------------*/

/*
 * Mozilla scrollbar styling
 */

/* use standard opaque scrollbars for most nodes */
[data-jp-theme-scrollbars='true'] {
  scrollbar-color: rgb(var(--jp-scrollbar-thumb-color))
    var(--jp-scrollbar-background-color);
}

/* for code nodes, use a transparent style of scrollbar. These selectors
 * will match lower in the tree, and so will override the above */
[data-jp-theme-scrollbars='true'] .CodeMirror-hscrollbar,
[data-jp-theme-scrollbars='true'] .CodeMirror-vscrollbar {
  scrollbar-color: rgba(var(--jp-scrollbar-thumb-color), 0.5) transparent;
}

/* tiny scrollbar */

.jp-scrollbar-tiny {
  scrollbar-color: rgba(var(--jp-scrollbar-thumb-color), 0.5) transparent;
  scrollbar-width: thin;
}

/* tiny scrollbar */

.jp-scrollbar-tiny::-webkit-scrollbar,
.jp-scrollbar-tiny::-webkit-scrollbar-corner {
  background-color: transparent;
  height: 4px;
  width: 4px;
}

.jp-scrollbar-tiny::-webkit-scrollbar-thumb {
  background: rgba(var(--jp-scrollbar-thumb-color), 0.5);
}

.jp-scrollbar-tiny::-webkit-scrollbar-track:horizontal {
  border-left: 0 solid transparent;
  border-right: 0 solid transparent;
}

.jp-scrollbar-tiny::-webkit-scrollbar-track:vertical {
  border-top: 0 solid transparent;
  border-bottom: 0 solid transparent;
}

/*
 * Lumino
 */

.lm-ScrollBar[data-orientation='horizontal'] {
  min-height: 16px;
  max-height: 16px;
  min-width: 45px;
  border-top: 1px solid #a0a0a0;
}

.lm-ScrollBar[data-orientation='vertical'] {
  min-width: 16px;
  max-width: 16px;
  min-height: 45px;
  border-left: 1px solid #a0a0a0;
}

.lm-ScrollBar-button {
  background-color: #f0f0f0;
  background-position: center center;
  min-height: 15px;
  max-height: 15px;
  min-width: 15px;
  max-width: 15px;
}

.lm-ScrollBar-button:hover {
  background-color: #dadada;
}

.lm-ScrollBar-button.lm-mod-active {
  background-color: #cdcdcd;
}

.lm-ScrollBar-track {
  background: #f0f0f0;
}

.lm-ScrollBar-thumb {
  background: #cdcdcd;
}

.lm-ScrollBar-thumb:hover {
  background: #bababa;
}

.lm-ScrollBar-thumb.lm-mod-active {
  background: #a0a0a0;
}

.lm-ScrollBar[data-orientation='horizontal'] .lm-ScrollBar-thumb {
  height: 100%;
  min-width: 15px;
  border-left: 1px solid #a0a0a0;
  border-right: 1px solid #a0a0a0;
}

.lm-ScrollBar[data-orientation='vertical'] .lm-ScrollBar-thumb {
  width: 100%;
  min-height: 15px;
  border-top: 1px solid #a0a0a0;
  border-bottom: 1px solid #a0a0a0;
}

.lm-ScrollBar[data-orientation='horizontal']
  .lm-ScrollBar-button[data-action='decrement'] {
  background-image: var(--jp-icon-caret-left);
  background-size: 17px;
}

.lm-ScrollBar[data-orientation='horizontal']
  .lm-ScrollBar-button[data-action='increment'] {
  background-image: var(--jp-icon-caret-right);
  background-size: 17px;
}

.lm-ScrollBar[data-orientation='vertical']
  .lm-ScrollBar-button[data-action='decrement'] {
  background-image: var(--jp-icon-caret-up);
  background-size: 17px;
}

.lm-ScrollBar[data-orientation='vertical']
  .lm-ScrollBar-button[data-action='increment'] {
  background-image: var(--jp-icon-caret-down);
  background-size: 17px;
}

/*
 * Copyright (c) Jupyter Development Team.
 * Distributed under the terms of the Modified BSD License.
 */

/*-----------------------------------------------------------------------------
| Copyright (c) Jupyter Development Team.
| Copyright (c) 2014-2017, PhosphorJS Contributors
|
| Distributed under the terms of the BSD 3-Clause License.
|
| The full license is in the file LICENSE, distributed with this software.
|----------------------------------------------------------------------------*/

.lm-Widget {
  box-sizing: border-box;
  position: relative;
  overflow: hidden;
}

.lm-Widget.lm-mod-hidden {
  display: none !important;
}

/*
 * Copyright (c) Jupyter Development Team.
 * Distributed under the terms of the Modified BSD License.
 */

.lm-AccordionPanel[data-orientation='horizontal'] > .lm-AccordionPanel-title {
  /* Title is rotated for horizontal accordion panel using CSS */
  display: block;
  transform-origin: top left;
  transform: rotate(-90deg) translate(-100%);
}

/*
 * Copyright (c) Jupyter Development Team.
 * Distributed under the terms of the Modified BSD License.
 */

/*-----------------------------------------------------------------------------
| Copyright (c) Jupyter Development Team.
| Copyright (c) 2014-2017, PhosphorJS Contributors
|
| Distributed under the terms of the BSD 3-Clause License.
|
| The full license is in the file LICENSE, distributed with this software.
|----------------------------------------------------------------------------*/

.lm-CommandPalette {
  display: flex;
  flex-direction: column;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}

.lm-CommandPalette-search {
  flex: 0 0 auto;
}

.lm-CommandPalette-content {
  flex: 1 1 auto;
  margin: 0;
  padding: 0;
  min-height: 0;
  overflow: auto;
  list-style-type: none;
}

.lm-CommandPalette-header {
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.lm-CommandPalette-item {
  display: flex;
  flex-direction: row;
}

.lm-CommandPalette-itemIcon {
  flex: 0 0 auto;
}

.lm-CommandPalette-itemContent {
  flex: 1 1 auto;
  overflow: hidden;
}

.lm-CommandPalette-itemShortcut {
  flex: 0 0 auto;
}

.lm-CommandPalette-itemLabel {
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.lm-close-icon {
  border: 1px solid transparent;
  background-color: transparent;
  position: absolute;
  z-index: 1;
  right: 3%;
  top: 0;
  bottom: 0;
  margin: auto;
  padding: 7px 0;
  display: none;
  vertical-align: middle;
  outline: 0;
  cursor: pointer;
}
.lm-close-icon:after {
  content: 'X';
  display: block;
  width: 15px;
  height: 15px;
  text-align: center;
  color: #000;
  font-weight: normal;
  font-size: 12px;
  cursor: pointer;
}

/*
 * Copyright (c) Jupyter Development Team.
 * Distributed under the terms of the Modified BSD License.
 */

/*-----------------------------------------------------------------------------
| Copyright (c) Jupyter Development Team.
| Copyright (c) 2014-2017, PhosphorJS Contributors
|
| Distributed under the terms of the BSD 3-Clause License.
|
| The full license is in the file LICENSE, distributed with this software.
|----------------------------------------------------------------------------*/

.lm-DockPanel {
  z-index: 0;
}

.lm-DockPanel-widget {
  z-index: 0;
}

.lm-DockPanel-tabBar {
  z-index: 1;
}

.lm-DockPanel-handle {
  z-index: 2;
}

.lm-DockPanel-handle.lm-mod-hidden {
  display: none !important;
}

.lm-DockPanel-handle:after {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  content: '';
}

.lm-DockPanel-handle[data-orientation='horizontal'] {
  cursor: ew-resize;
}

.lm-DockPanel-handle[data-orientation='vertical'] {
  cursor: ns-resize;
}

.lm-DockPanel-handle[data-orientation='horizontal']:after {
  left: 50%;
  min-width: 8px;
  transform: translateX(-50%);
}

.lm-DockPanel-handle[data-orientation='vertical']:after {
  top: 50%;
  min-height: 8px;
  transform: translateY(-50%);
}

.lm-DockPanel-overlay {
  z-index: 3;
  box-sizing: border-box;
  pointer-events: none;
}

.lm-DockPanel-overlay.lm-mod-hidden {
  display: none !important;
}

/*
 * Copyright (c) Jupyter Development Team.
 * Distributed under the terms of the Modified BSD License.
 */

/*-----------------------------------------------------------------------------
| Copyright (c) Jupyter Development Team.
| Copyright (c) 2014-2017, PhosphorJS Contributors
|
| Distributed under the terms of the BSD 3-Clause License.
|
| The full license is in the file LICENSE, distributed with this software.
|----------------------------------------------------------------------------*/

.lm-Menu {
  z-index: 10000;
  position: absolute;
  white-space: nowrap;
  overflow-x: hidden;
  overflow-y: auto;
  outline: none;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}

.lm-Menu-content {
  margin: 0;
  padding: 0;
  display: table;
  list-style-type: none;
}

.lm-Menu-item {
  display: table-row;
}

.lm-Menu-item.lm-mod-hidden,
.lm-Menu-item.lm-mod-collapsed {
  display: none !important;
}

.lm-Menu-itemIcon,
.lm-Menu-itemSubmenuIcon {
  display: table-cell;
  text-align: center;
}

.lm-Menu-itemLabel {
  display: table-cell;
  text-align: left;
}

.lm-Menu-itemShortcut {
  display: table-cell;
  text-align: right;
}

/*
 * Copyright (c) Jupyter Development Team.
 * Distributed under the terms of the Modified BSD License.
 */

/*-----------------------------------------------------------------------------
| Copyright (c) Jupyter Development Team.
| Copyright (c) 2014-2017, PhosphorJS Contributors
|
| Distributed under the terms of the BSD 3-Clause License.
|
| The full license is in the file LICENSE, distributed with this software.
|----------------------------------------------------------------------------*/

.lm-MenuBar {
  outline: none;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}

.lm-MenuBar-content {
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: row;
  list-style-type: none;
}

.lm-MenuBar-item {
  box-sizing: border-box;
}

.lm-MenuBar-itemIcon,
.lm-MenuBar-itemLabel {
  display: inline-block;
}

/*
 * Copyright (c) Jupyter Development Team.
 * Distributed under the terms of the Modified BSD License.
 */

/*-----------------------------------------------------------------------------
| Copyright (c) Jupyter Development Team.
| Copyright (c) 2014-2017, PhosphorJS Contributors
|
| Distributed under the terms of the BSD 3-Clause License.
|
| The full license is in the file LICENSE, distributed with this software.
|----------------------------------------------------------------------------*/

.lm-ScrollBar {
  display: flex;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}

.lm-ScrollBar[data-orientation='horizontal'] {
  flex-direction: row;
}

.lm-ScrollBar[data-orientation='vertical'] {
  flex-direction: column;
}

.lm-ScrollBar-button {
  box-sizing: border-box;
  flex: 0 0 auto;
}

.lm-ScrollBar-track {
  box-sizing: border-box;
  position: relative;
  overflow: hidden;
  flex: 1 1 auto;
}

.lm-ScrollBar-thumb {
  box-sizing: border-box;
  position: absolute;
}

/*
 * Copyright (c) Jupyter Development Team.
 * Distributed under the terms of the Modified BSD License.
 */

/*-----------------------------------------------------------------------------
| Copyright (c) Jupyter Development Team.
| Copyright (c) 2014-2017, PhosphorJS Contributors
|
| Distributed under the terms of the BSD 3-Clause License.
|
| The full license is in the file LICENSE, distributed with this software.
|----------------------------------------------------------------------------*/

.lm-SplitPanel-child {
  z-index: 0;
}

.lm-SplitPanel-handle {
  z-index: 1;
}

.lm-SplitPanel-handle.lm-mod-hidden {
  display: none !important;
}

.lm-SplitPanel-handle:after {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  content: '';
}

.lm-SplitPanel[data-orientation='horizontal'] > .lm-SplitPanel-handle {
  cursor: ew-resize;
}

.lm-SplitPanel[data-orientation='vertical'] > .lm-SplitPanel-handle {
  cursor: ns-resize;
}

.lm-SplitPanel[data-orientation='horizontal'] > .lm-SplitPanel-handle:after {
  left: 50%;
  min-width: 8px;
  transform: translateX(-50%);
}

.lm-SplitPanel[data-orientation='vertical'] > .lm-SplitPanel-handle:after {
  top: 50%;
  min-height: 8px;
  transform: translateY(-50%);
}

/*
 * Copyright (c) Jupyter Development Team.
 * Distributed under the terms of the Modified BSD License.
 */

/*-----------------------------------------------------------------------------
| Copyright (c) Jupyter Development Team.
| Copyright (c) 2014-2017, PhosphorJS Contributors
|
| Distributed under the terms of the BSD 3-Clause License.
|
| The full license is in the file LICENSE, distributed with this software.
|----------------------------------------------------------------------------*/

.lm-TabBar {
  display: flex;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}

.lm-TabBar[data-orientation='horizontal'] {
  flex-direction: row;
  align-items: flex-end;
}

.lm-TabBar[data-orientation='vertical'] {
  flex-direction: column;
  align-items: flex-end;
}

.lm-TabBar-content {
  margin: 0;
  padding: 0;
  display: flex;
  flex: 1 1 auto;
  list-style-type: none;
}

.lm-TabBar[data-orientation='horizontal'] > .lm-TabBar-content {
  flex-direction: row;
}

.lm-TabBar[data-orientation='vertical'] > .lm-TabBar-content {
  flex-direction: column;
}

.lm-TabBar-tab {
  display: flex;
  flex-direction: row;
  box-sizing: border-box;
  overflow: hidden;
  touch-action: none; /* Disable native Drag/Drop */
}

.lm-TabBar-tabIcon,
.lm-TabBar-tabCloseIcon {
  flex: 0 0 auto;
}

.lm-TabBar-tabLabel {
  flex: 1 1 auto;
  overflow: hidden;
  white-space: nowrap;
}

.lm-TabBar-tabInput {
  user-select: all;
  width: 100%;
  box-sizing: border-box;
}

.lm-TabBar-tab.lm-mod-hidden {
  display: none !important;
}

.lm-TabBar-addButton.lm-mod-hidden {
  display: none !important;
}

.lm-TabBar.lm-mod-dragging .lm-TabBar-tab {
  position: relative;
}

.lm-TabBar.lm-mod-dragging[data-orientation='horizontal'] .lm-TabBar-tab {
  left: 0;
  transition: left 150ms ease;
}

.lm-TabBar.lm-mod-dragging[data-orientation='vertical'] .lm-TabBar-tab {
  top: 0;
  transition: top 150ms ease;
}

.lm-TabBar.lm-mod-dragging .lm-TabBar-tab.lm-mod-dragging {
  transition: none;
}

.lm-TabBar-tabLabel .lm-TabBar-tabInput {
  user-select: all;
  width: 100%;
  box-sizing: border-box;
  background: inherit;
}

/*
 * Copyright (c) Jupyter Development Team.
 * Distributed under the terms of the Modified BSD License.
 */

/*-----------------------------------------------------------------------------
| Copyright (c) Jupyter Development Team.
| Copyright (c) 2014-2017, PhosphorJS Contributors
|
| Distributed under the terms of the BSD 3-Clause License.
|
| The full license is in the file LICENSE, distributed with this software.
|----------------------------------------------------------------------------*/

.lm-TabPanel-tabBar {
  z-index: 1;
}

.lm-TabPanel-stackedPanel {
  z-index: 0;
}

/*
 * Copyright (c) Jupyter Development Team.
 * Distributed under the terms of the Modified BSD License.
 */

/*-----------------------------------------------------------------------------
| Copyright (c) Jupyter Development Team.
| Copyright (c) 2014-2017, PhosphorJS Contributors
|
| Distributed under the terms of the BSD 3-Clause License.
|
| The full license is in the file LICENSE, distributed with this software.
|----------------------------------------------------------------------------*/

/*-----------------------------------------------------------------------------
| Copyright (c) Jupyter Development Team.
| Distributed under the terms of the Modified BSD License.
|----------------------------------------------------------------------------*/

.jp-Collapse {
  display: flex;
  flex-direction: column;
  align-items: stretch;
}

.jp-Collapse-header {
  padding: 1px 12px;
  background-color: var(--jp-layout-color1);
  border-bottom: solid var(--jp-border-width) var(--jp-border-color2);
  color: var(--jp-ui-font-color1);
  cursor: pointer;
  display: flex;
  align-items: center;
  font-size: var(--jp-ui-font-size0);
  font-weight: 600;
  text-transform: uppercase;
  user-select: none;
}

.jp-Collapser-icon {
  height: 16px;
}

.jp-Collapse-header-collapsed .jp-Collapser-icon {
  transform: rotate(-90deg);
  margin: auto 0;
}

.jp-Collapser-title {
  line-height: 25px;
}

.jp-Collapse-contents {
  padding: 0 12px;
  background-color: var(--jp-layout-color1);
  color: var(--jp-ui-font-color1);
  overflow: auto;
}

/*-----------------------------------------------------------------------------
| Copyright (c) Jupyter Development Team.
| Distributed under the terms of the Modified BSD License.
|----------------------------------------------------------------------------*/

/* This file was auto-generated by ensureUiComponents() in @jupyterlab/buildutils */

/**
 * (DEPRECATED) Support for consuming icons as CSS background images
 */

/* Icons urls */

:root {
  --jp-icon-add-above: url();
  --jp-icon-add-below: url();
  --jp-icon-add: url();
  --jp-icon-bell: url();
  --jp-icon-bug-dot: url();
  --jp-icon-bug: url();
  --jp-icon-build: url();
  --jp-icon-caret-down-empty-thin: url();
  --jp-icon-caret-down-empty: url();
  --jp-icon-caret-down: url();
  --jp-icon-caret-left: url();
  --jp-icon-caret-right: url();
  --jp-icon-caret-up-empty-thin: url();
  --jp-icon-caret-up: url();
  --jp-icon-case-sensitive: url();
  --jp-icon-check: url();
  --jp-icon-circle-empty: url();
  --jp-icon-circle: url();
  --jp-icon-clear: url();
  --jp-icon-close: url();
  --jp-icon-code-check: url();
  --jp-icon-code: url();
  --jp-icon-collapse-all: url();
  --jp-icon-console: url();
  --jp-icon-copy: url();
  --jp-icon-copyright: url();
  --jp-icon-cut: url();
  --jp-icon-delete: url();
  --jp-icon-download: url();
  --jp-icon-duplicate: url();
  --jp-icon-edit: url();
  --jp-icon-ellipses: url();
  --jp-icon-error: url();
  --jp-icon-expand-all: url();
  --jp-icon-extension: url();
  --jp-icon-fast-forward: url();
  --jp-icon-file-upload: url();
  --jp-icon-file: url();
  --jp-icon-filter-dot: url();
  --jp-icon-filter-list: url();
  --jp-icon-filter: url();
  --jp-icon-folder-favorite: url();
  --jp-icon-folder: url();
  --jp-icon-home: url();
  --jp-icon-html5: url();
  --jp-icon-image: url();
  --jp-icon-info: url();
  --jp-icon-inspector: url();
  --jp-icon-json: url();
  --jp-icon-julia: url();
  --jp-icon-jupyter-favicon: url();
  --jp-icon-jupyter: url();
  --jp-icon-jupyterlab-wordmark: url();
  --jp-icon-kernel: url();
  --jp-icon-keyboard: url();
  --jp-icon-launch: url();
  --jp-icon-launcher: url();
  --jp-icon-line-form: url();
  --jp-icon-link: url();
  --jp-icon-list: url();
  --jp-icon-markdown: url();
  --jp-icon-move-down: url();
  --jp-icon-move-up: url();
  --jp-icon-new-folder: url();
  --jp-icon-not-trusted: url();
  --jp-icon-notebook: url();
  --jp-icon-numbering: url();
  --jp-icon-offline-bolt: url();
  --jp-icon-palette: url();
  --jp-icon-paste: url();
  --jp-icon-pdf: url();
  --jp-icon-python: url();
  --jp-icon-r-kernel: url();
  --jp-icon-react: url();
  --jp-icon-redo: url();
  --jp-icon-refresh: url();
  --jp-icon-regex: url();
  --jp-icon-run: url();
  --jp-icon-running: url();
  --jp-icon-save: url();
  --jp-icon-search: url();
  --jp-icon-settings: url();
  --jp-icon-share: url();
  --jp-icon-spreadsheet: url();
  --jp-icon-stop: url();
  --jp-icon-tab: url();
  --jp-icon-table-rows: url();
  --jp-icon-tag: url();
  --jp-icon-terminal: url();
  --jp-icon-text-editor: url();
  --jp-icon-toc: url();
  --jp-icon-tree-view: url();
  --jp-icon-trusted: url();
  --jp-icon-undo: url();
  --jp-icon-user: url();
  --jp-icon-users: url();
  --jp-icon-vega: url();
  --jp-icon-word: url();
  --jp-icon-yaml: url();
}

/* Icon CSS class declarations */

.jp-AddAboveIcon {
  background-image: var(--jp-icon-add-above);
}

.jp-AddBelowIcon {
  background-image: var(--jp-icon-add-below);
}

.jp-AddIcon {
  background-image: var(--jp-icon-add);
}

.jp-BellIcon {
  background-image: var(--jp-icon-bell);
}

.jp-BugDotIcon {
  background-image: var(--jp-icon-bug-dot);
}

.jp-BugIcon {
  background-image: var(--jp-icon-bug);
}

.jp-BuildIcon {
  background-image: var(--jp-icon-build);
}

.jp-CaretDownEmptyIcon {
  background-image: var(--jp-icon-caret-down-empty);
}

.jp-CaretDownEmptyThinIcon {
  background-image: var(--jp-icon-caret-down-empty-thin);
}

.jp-CaretDownIcon {
  background-image: var(--jp-icon-caret-down);
}

.jp-CaretLeftIcon {
  background-image: var(--jp-icon-caret-left);
}

.jp-CaretRightIcon {
  background-image: var(--jp-icon-caret-right);
}

.jp-CaretUpEmptyThinIcon {
  background-image: var(--jp-icon-caret-up-empty-thin);
}

.jp-CaretUpIcon {
  background-image: var(--jp-icon-caret-up);
}

.jp-CaseSensitiveIcon {
  background-image: var(--jp-icon-case-sensitive);
}

.jp-CheckIcon {
  background-image: var(--jp-icon-check);
}

.jp-CircleEmptyIcon {
  background-image: var(--jp-icon-circle-empty);
}

.jp-CircleIcon {
  background-image: var(--jp-icon-circle);
}

.jp-ClearIcon {
  background-image: var(--jp-icon-clear);
}

.jp-CloseIcon {
  background-image: var(--jp-icon-close);
}

.jp-CodeCheckIcon {
  background-image: var(--jp-icon-code-check);
}

.jp-CodeIcon {
  background-image: var(--jp-icon-code);
}

.jp-CollapseAllIcon {
  background-image: var(--jp-icon-collapse-all);
}

.jp-ConsoleIcon {
  background-image: var(--jp-icon-console);
}

.jp-CopyIcon {
  background-image: var(--jp-icon-copy);
}

.jp-CopyrightIcon {
  background-image: var(--jp-icon-copyright);
}

.jp-CutIcon {
  background-image: var(--jp-icon-cut);
}

.jp-DeleteIcon {
  background-image: var(--jp-icon-delete);
}

.jp-DownloadIcon {
  background-image: var(--jp-icon-download);
}

.jp-DuplicateIcon {
  background-image: var(--jp-icon-duplicate);
}

.jp-EditIcon {
  background-image: var(--jp-icon-edit);
}

.jp-EllipsesIcon {
  background-image: var(--jp-icon-ellipses);
}

.jp-ErrorIcon {
  background-image: var(--jp-icon-error);
}

.jp-ExpandAllIcon {
  background-image: var(--jp-icon-expand-all);
}

.jp-ExtensionIcon {
  background-image: var(--jp-icon-extension);
}

.jp-FastForwardIcon {
  background-image: var(--jp-icon-fast-forward);
}

.jp-FileIcon {
  background-image: var(--jp-icon-file);
}

.jp-FileUploadIcon {
  background-image: var(--jp-icon-file-upload);
}

.jp-FilterDotIcon {
  background-image: var(--jp-icon-filter-dot);
}

.jp-FilterIcon {
  background-image: var(--jp-icon-filter);
}

.jp-FilterListIcon {
  background-image: var(--jp-icon-filter-list);
}

.jp-FolderFavoriteIcon {
  background-image: var(--jp-icon-folder-favorite);
}

.jp-FolderIcon {
  background-image: var(--jp-icon-folder);
}

.jp-HomeIcon {
  background-image: var(--jp-icon-home);
}

.jp-Html5Icon {
  background-image: var(--jp-icon-html5);
}

.jp-ImageIcon {
  background-image: var(--jp-icon-image);
}

.jp-InfoIcon {
  background-image: var(--jp-icon-info);
}

.jp-InspectorIcon {
  background-image: var(--jp-icon-inspector);
}

.jp-JsonIcon {
  background-image: var(--jp-icon-json);
}

.jp-JuliaIcon {
  background-image: var(--jp-icon-julia);
}

.jp-JupyterFaviconIcon {
  background-image: var(--jp-icon-jupyter-favicon);
}

.jp-JupyterIcon {
  background-image: var(--jp-icon-jupyter);
}

.jp-JupyterlabWordmarkIcon {
  background-image: var(--jp-icon-jupyterlab-wordmark);
}

.jp-KernelIcon {
  background-image: var(--jp-icon-kernel);
}

.jp-KeyboardIcon {
  background-image: var(--jp-icon-keyboard);
}

.jp-LaunchIcon {
  background-image: var(--jp-icon-launch);
}

.jp-LauncherIcon {
  background-image: var(--jp-icon-launcher);
}

.jp-LineFormIcon {
  background-image: var(--jp-icon-line-form);
}

.jp-LinkIcon {
  background-image: var(--jp-icon-link);
}

.jp-ListIcon {
  background-image: var(--jp-icon-list);
}

.jp-MarkdownIcon {
  background-image: var(--jp-icon-markdown);
}

.jp-MoveDownIcon {
  background-image: var(--jp-icon-move-down);
}

.jp-MoveUpIcon {
  background-image: var(--jp-icon-move-up);
}

.jp-NewFolderIcon {
  background-image: var(--jp-icon-new-folder);
}

.jp-NotTrustedIcon {
  background-image: var(--jp-icon-not-trusted);
}

.jp-NotebookIcon {
  background-image: var(--jp-icon-notebook);
}

.jp-NumberingIcon {
  background-image: var(--jp-icon-numbering);
}

.jp-OfflineBoltIcon {
  background-image: var(--jp-icon-offline-bolt);
}

.jp-PaletteIcon {
  background-image: var(--jp-icon-palette);
}

.jp-PasteIcon {
  background-image: var(--jp-icon-paste);
}

.jp-PdfIcon {
  background-image: var(--jp-icon-pdf);
}

.jp-PythonIcon {
  background-image: var(--jp-icon-python);
}

.jp-RKernelIcon {
  background-image: var(--jp-icon-r-kernel);
}

.jp-ReactIcon {
  background-image: var(--jp-icon-react);
}

.jp-RedoIcon {
  background-image: var(--jp-icon-redo);
}

.jp-RefreshIcon {
  background-image: var(--jp-icon-refresh);
}

.jp-RegexIcon {
  background-image: var(--jp-icon-regex);
}

.jp-RunIcon {
  background-image: var(--jp-icon-run);
}

.jp-RunningIcon {
  background-image: var(--jp-icon-running);
}

.jp-SaveIcon {
  background-image: var(--jp-icon-save);
}

.jp-SearchIcon {
  background-image: var(--jp-icon-search);
}

.jp-SettingsIcon {
  background-image: var(--jp-icon-settings);
}

.jp-ShareIcon {
  background-image: var(--jp-icon-share);
}

.jp-SpreadsheetIcon {
  background-image: var(--jp-icon-spreadsheet);
}

.jp-StopIcon {
  background-image: var(--jp-icon-stop);
}

.jp-TabIcon {
  background-image: var(--jp-icon-tab);
}

.jp-TableRowsIcon {
  background-image: var(--jp-icon-table-rows);
}

.jp-TagIcon {
  background-image: var(--jp-icon-tag);
}

.jp-TerminalIcon {
  background-image: var(--jp-icon-terminal);
}

.jp-TextEditorIcon {
  background-image: var(--jp-icon-text-editor);
}

.jp-TocIcon {
  background-image: var(--jp-icon-toc);
}

.jp-TreeViewIcon {
  background-image: var(--jp-icon-tree-view);
}

.jp-TrustedIcon {
  background-image: var(--jp-icon-trusted);
}

.jp-UndoIcon {
  background-image: var(--jp-icon-undo);
}

.jp-UserIcon {
  background-image: var(--jp-icon-user);
}

.jp-UsersIcon {
  background-image: var(--jp-icon-users);
}

.jp-VegaIcon {
  background-image: var(--jp-icon-vega);
}

.jp-WordIcon {
  background-image: var(--jp-icon-word);
}

.jp-YamlIcon {
  background-image: var(--jp-icon-yaml);
}

/*-----------------------------------------------------------------------------
| Copyright (c) Jupyter Development Team.
| Distributed under the terms of the Modified BSD License.
|----------------------------------------------------------------------------*/

/**
 * (DEPRECATED) Support for consuming icons as CSS background images
 */

.jp-Icon,
.jp-MaterialIcon {
  background-position: center;
  background-repeat: no-repeat;
  background-size: 16px;
  min-width: 16px;
  min-height: 16px;
}

.jp-Icon-cover {
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
}

/**
 * (DEPRECATED) Support for specific CSS icon sizes
 */

.jp-Icon-16 {
  background-size: 16px;
  min-width: 16px;
  min-height: 16px;
}

.jp-Icon-18 {
  background-size: 18px;
  min-width: 18px;
  min-height: 18px;
}

.jp-Icon-20 {
  background-size: 20px;
  min-width: 20px;
  min-height: 20px;
}

/*-----------------------------------------------------------------------------
| Copyright (c) Jupyter Development Team.
| Distributed under the terms of the Modified BSD License.
|----------------------------------------------------------------------------*/

.lm-TabBar .lm-TabBar-addButton {
  align-items: center;
  display: flex;
  padding: 4px;
  padding-bottom: 5px;
  margin-right: 1px;
  background-color: var(--jp-layout-color2);
}

.lm-TabBar .lm-TabBar-addButton:hover {
  background-color: var(--jp-layout-color1);
}

.lm-DockPanel-tabBar .lm-TabBar-tab {
  width: var(--jp-private-horizontal-tab-width);
}

.lm-DockPanel-tabBar .lm-TabBar-content {
  flex: unset;
}

.lm-DockPanel-tabBar[data-orientation='horizontal'] {
  flex: 1 1 auto;
}

/*-----------------------------------------------------------------------------
| Copyright (c) Jupyter Development Team.
| Distributed under the terms of the Modified BSD License.
|----------------------------------------------------------------------------*/

/**
 * Support for icons as inline SVG HTMLElements
 */

/* recolor the primary elements of an icon */
.jp-icon0[fill] {
  fill: var(--jp-inverse-layout-color0);
}

.jp-icon1[fill] {
  fill: var(--jp-inverse-layout-color1);
}

.jp-icon2[fill] {
  fill: var(--jp-inverse-layout-color2);
}

.jp-icon3[fill] {
  fill: var(--jp-inverse-layout-color3);
}

.jp-icon4[fill] {
  fill: var(--jp-inverse-layout-color4);
}

.jp-icon0[stroke] {
  stroke: var(--jp-inverse-layout-color0);
}

.jp-icon1[stroke] {
  stroke: var(--jp-inverse-layout-color1);
}

.jp-icon2[stroke] {
  stroke: var(--jp-inverse-layout-color2);
}

.jp-icon3[stroke] {
  stroke: var(--jp-inverse-layout-color3);
}

.jp-icon4[stroke] {
  stroke: var(--jp-inverse-layout-color4);
}

/* recolor the accent elements of an icon */
.jp-icon-accent0[fill] {
  fill: var(--jp-layout-color0);
}

.jp-icon-accent1[fill] {
  fill: var(--jp-layout-color1);
}

.jp-icon-accent2[fill] {
  fill: var(--jp-layout-color2);
}

.jp-icon-accent3[fill] {
  fill: var(--jp-layout-color3);
}

.jp-icon-accent4[fill] {
  fill: var(--jp-layout-color4);
}

.jp-icon-accent0[stroke] {
  stroke: var(--jp-layout-color0);
}

.jp-icon-accent1[stroke] {
  stroke: var(--jp-layout-color1);
}

.jp-icon-accent2[stroke] {
  stroke: var(--jp-layout-color2);
}

.jp-icon-accent3[stroke] {
  stroke: var(--jp-layout-color3);
}

.jp-icon-accent4[stroke] {
  stroke: var(--jp-layout-color4);
}

/* set the color of an icon to transparent */
.jp-icon-none[fill] {
  fill: none;
}

.jp-icon-none[stroke] {
  stroke: none;
}

/* brand icon colors. Same for light and dark */
.jp-icon-brand0[fill] {
  fill: var(--jp-brand-color0);
}

.jp-icon-brand1[fill] {
  fill: var(--jp-brand-color1);
}

.jp-icon-brand2[fill] {
  fill: var(--jp-brand-color2);
}

.jp-icon-brand3[fill] {
  fill: var(--jp-brand-color3);
}

.jp-icon-brand4[fill] {
  fill: var(--jp-brand-color4);
}

.jp-icon-brand0[stroke] {
  stroke: var(--jp-brand-color0);
}

.jp-icon-brand1[stroke] {
  stroke: var(--jp-brand-color1);
}

.jp-icon-brand2[stroke] {
  stroke: var(--jp-brand-color2);
}

.jp-icon-brand3[stroke] {
  stroke: var(--jp-brand-color3);
}

.jp-icon-brand4[stroke] {
  stroke: var(--jp-brand-color4);
}

/* warn icon colors. Same for light and dark */
.jp-icon-warn0[fill] {
  fill: var(--jp-warn-color0);
}

.jp-icon-warn1[fill] {
  fill: var(--jp-warn-color1);
}

.jp-icon-warn2[fill] {
  fill: var(--jp-warn-color2);
}

.jp-icon-warn3[fill] {
  fill: var(--jp-warn-color3);
}

.jp-icon-warn0[stroke] {
  stroke: var(--jp-warn-color0);
}

.jp-icon-warn1[stroke] {
  stroke: var(--jp-warn-color1);
}

.jp-icon-warn2[stroke] {
  stroke: var(--jp-warn-color2);
}

.jp-icon-warn3[stroke] {
  stroke: var(--jp-warn-color3);
}

/* icon colors that contrast well with each other and most backgrounds */
.jp-icon-contrast0[fill] {
  fill: var(--jp-icon-contrast-color0);
}

.jp-icon-contrast1[fill] {
  fill: var(--jp-icon-contrast-color1);
}

.jp-icon-contrast2[fill] {
  fill: var(--jp-icon-contrast-color2);
}

.jp-icon-contrast3[fill] {
  fill: var(--jp-icon-contrast-color3);
}

.jp-icon-contrast0[stroke] {
  stroke: var(--jp-icon-contrast-color0);
}

.jp-icon-contrast1[stroke] {
  stroke: var(--jp-icon-contrast-color1);
}

.jp-icon-contrast2[stroke] {
  stroke: var(--jp-icon-contrast-color2);
}

.jp-icon-contrast3[stroke] {
  stroke: var(--jp-icon-contrast-color3);
}

.jp-icon-dot[fill] {
  fill: var(--jp-warn-color0);
}

.jp-jupyter-icon-color[fill] {
  fill: var(--jp-jupyter-icon-color, var(--jp-warn-color0));
}

.jp-notebook-icon-color[fill] {
  fill: var(--jp-notebook-icon-color, var(--jp-warn-color0));
}

.jp-json-icon-color[fill] {
  fill: var(--jp-json-icon-color, var(--jp-warn-color1));
}

.jp-console-icon-color[fill] {
  fill: var(--jp-console-icon-color, white);
}

.jp-console-icon-background-color[fill] {
  fill: var(--jp-console-icon-background-color, var(--jp-brand-color1));
}

.jp-terminal-icon-color[fill] {
  fill: var(--jp-terminal-icon-color, var(--jp-layout-color2));
}

.jp-terminal-icon-background-color[fill] {
  fill: var(
    --jp-terminal-icon-background-color,
    var(--jp-inverse-layout-color2)
  );
}

.jp-text-editor-icon-color[fill] {
  fill: var(--jp-text-editor-icon-color, var(--jp-inverse-layout-color3));
}

.jp-inspector-icon-color[fill] {
  fill: var(--jp-inspector-icon-color, var(--jp-inverse-layout-color3));
}

/* CSS for icons in selected filebrowser listing items */
.jp-DirListing-item.jp-mod-selected .jp-icon-selectable[fill] {
  fill: #fff;
}

.jp-DirListing-item.jp-mod-selected .jp-icon-selectable-inverse[fill] {
  fill: var(--jp-brand-color1);
}

/* stylelint-disable selector-max-class, selector-max-compound-selectors */

/**
* TODO: come up with non css-hack solution for showing the busy icon on top
*  of the close icon
* CSS for complex behavior of close icon of tabs in the main area tabbar
*/
.lm-DockPanel-tabBar
  .lm-TabBar-tab.lm-mod-closable.jp-mod-dirty
  > .lm-TabBar-tabCloseIcon
  > :not(:hover)
  > .jp-icon3[fill] {
  fill: none;
}

.lm-DockPanel-tabBar
  .lm-TabBar-tab.lm-mod-closable.jp-mod-dirty
  > .lm-TabBar-tabCloseIcon
  > :not(:hover)
  > .jp-icon-busy[fill] {
  fill: var(--jp-inverse-layout-color3);
}

/* stylelint-enable selector-max-class, selector-max-compound-selectors */

/* CSS for icons in status bar */
#jp-main-statusbar .jp-mod-selected .jp-icon-selectable[fill] {
  fill: #fff;
}

#jp-main-statusbar .jp-mod-selected .jp-icon-selectable-inverse[fill] {
  fill: var(--jp-brand-color1);
}

/* special handling for splash icon CSS. While the theme CSS reloads during
   splash, the splash icon can loose theming. To prevent that, we set a
   default for its color variable */
:root {
  --jp-warn-color0: var(--md-orange-700);
}

/* not sure what to do with this one, used in filebrowser listing */
.jp-DragIcon {
  margin-right: 4px;
}

/*-----------------------------------------------------------------------------
| Copyright (c) Jupyter Development Team.
| Distributed under the terms of the Modified BSD License.
|----------------------------------------------------------------------------*/

/**
 * Support for alt colors for icons as inline SVG HTMLElements
 */

/* alt recolor the primary elements of an icon */
.jp-icon-alt .jp-icon0[fill] {
  fill: var(--jp-layout-color0);
}

.jp-icon-alt .jp-icon1[fill] {
  fill: var(--jp-layout-color1);
}

.jp-icon-alt .jp-icon2[fill] {
  fill: var(--jp-layout-color2);
}

.jp-icon-alt .jp-icon3[fill] {
  fill: var(--jp-layout-color3);
}

.jp-icon-alt .jp-icon4[fill] {
  fill: var(--jp-layout-color4);
}

.jp-icon-alt .jp-icon0[stroke] {
  stroke: var(--jp-layout-color0);
}

.jp-icon-alt .jp-icon1[stroke] {
  stroke: var(--jp-layout-color1);
}

.jp-icon-alt .jp-icon2[stroke] {
  stroke: var(--jp-layout-color2);
}

.jp-icon-alt .jp-icon3[stroke] {
  stroke: var(--jp-layout-color3);
}

.jp-icon-alt .jp-icon4[stroke] {
  stroke: var(--jp-layout-color4);
}

/* alt recolor the accent elements of an icon */
.jp-icon-alt .jp-icon-accent0[fill] {
  fill: var(--jp-inverse-layout-color0);
}

.jp-icon-alt .jp-icon-accent1[fill] {
  fill: var(--jp-inverse-layout-color1);
}

.jp-icon-alt .jp-icon-accent2[fill] {
  fill: var(--jp-inverse-layout-color2);
}

.jp-icon-alt .jp-icon-accent3[fill] {
  fill: var(--jp-inverse-layout-color3);
}

.jp-icon-alt .jp-icon-accent4[fill] {
  fill: var(--jp-inverse-layout-color4);
}

.jp-icon-alt .jp-icon-accent0[stroke] {
  stroke: var(--jp-inverse-layout-color0);
}

.jp-icon-alt .jp-icon-accent1[stroke] {
  stroke: var(--jp-inverse-layout-color1);
}

.jp-icon-alt .jp-icon-accent2[stroke] {
  stroke: var(--jp-inverse-layout-color2);
}

.jp-icon-alt .jp-icon-accent3[stroke] {
  stroke: var(--jp-inverse-layout-color3);
}

.jp-icon-alt .jp-icon-accent4[stroke] {
  stroke: var(--jp-inverse-layout-color4);
}

/*-----------------------------------------------------------------------------
| Copyright (c) Jupyter Development Team.
| Distributed under the terms of the Modified BSD License.
|----------------------------------------------------------------------------*/

.jp-icon-hoverShow:not(:hover) .jp-icon-hoverShow-content {
  display: none !important;
}

/**
 * Support for hover colors for icons as inline SVG HTMLElements
 */

/**
 * regular colors
 */

/* recolor the primary elements of an icon */
.jp-icon-hover :hover .jp-icon0-hover[fill] {
  fill: var(--jp-inverse-layout-color0);
}

.jp-icon-hover :hover .jp-icon1-hover[fill] {
  fill: var(--jp-inverse-layout-color1);
}

.jp-icon-hover :hover .jp-icon2-hover[fill] {
  fill: var(--jp-inverse-layout-color2);
}

.jp-icon-hover :hover .jp-icon3-hover[fill] {
  fill: var(--jp-inverse-layout-color3);
}

.jp-icon-hover :hover .jp-icon4-hover[fill] {
  fill: var(--jp-inverse-layout-color4);
}

.jp-icon-hover :hover .jp-icon0-hover[stroke] {
  stroke: var(--jp-inverse-layout-color0);
}

.jp-icon-hover :hover .jp-icon1-hover[stroke] {
  stroke: var(--jp-inverse-layout-color1);
}

.jp-icon-hover :hover .jp-icon2-hover[stroke] {
  stroke: var(--jp-inverse-layout-color2);
}

.jp-icon-hover :hover .jp-icon3-hover[stroke] {
  stroke: var(--jp-inverse-layout-color3);
}

.jp-icon-hover :hover .jp-icon4-hover[stroke] {
  stroke: var(--jp-inverse-layout-color4);
}

/* recolor the accent elements of an icon */
.jp-icon-hover :hover .jp-icon-accent0-hover[fill] {
  fill: var(--jp-layout-color0);
}

.jp-icon-hover :hover .jp-icon-accent1-hover[fill] {
  fill: var(--jp-layout-color1);
}

.jp-icon-hover :hover .jp-icon-accent2-hover[fill] {
  fill: var(--jp-layout-color2);
}

.jp-icon-hover :hover .jp-icon-accent3-hover[fill] {
  fill: var(--jp-layout-color3);
}

.jp-icon-hover :hover .jp-icon-accent4-hover[fill] {
  fill: var(--jp-layout-color4);
}

.jp-icon-hover :hover .jp-icon-accent0-hover[stroke] {
  stroke: var(--jp-layout-color0);
}

.jp-icon-hover :hover .jp-icon-accent1-hover[stroke] {
  stroke: var(--jp-layout-color1);
}

.jp-icon-hover :hover .jp-icon-accent2-hover[stroke] {
  stroke: var(--jp-layout-color2);
}

.jp-icon-hover :hover .jp-icon-accent3-hover[stroke] {
  stroke: var(--jp-layout-color3);
}

.jp-icon-hover :hover .jp-icon-accent4-hover[stroke] {
  stroke: var(--jp-layout-color4);
}

/* set the color of an icon to transparent */
.jp-icon-hover :hover .jp-icon-none-hover[fill] {
  fill: none;
}

.jp-icon-hover :hover .jp-icon-none-hover[stroke] {
  stroke: none;
}

/**
 * inverse colors
 */

/* inverse recolor the primary elements of an icon */
.jp-icon-hover.jp-icon-alt :hover .jp-icon0-hover[fill] {
  fill: var(--jp-layout-color0);
}

.jp-icon-hover.jp-icon-alt :hover .jp-icon1-hover[fill] {
  fill: var(--jp-layout-color1);
}

.jp-icon-hover.jp-icon-alt :hover .jp-icon2-hover[fill] {
  fill: var(--jp-layout-color2);
}

.jp-icon-hover.jp-icon-alt :hover .jp-icon3-hover[fill] {
  fill: var(--jp-layout-color3);
}

.jp-icon-hover.jp-icon-alt :hover .jp-icon4-hover[fill] {
  fill: var(--jp-layout-color4);
}

.jp-icon-hover.jp-icon-alt :hover .jp-icon0-hover[stroke] {
  stroke: var(--jp-layout-color0);
}

.jp-icon-hover.jp-icon-alt :hover .jp-icon1-hover[stroke] {
  stroke: var(--jp-layout-color1);
}

.jp-icon-hover.jp-icon-alt :hover .jp-icon2-hover[stroke] {
  stroke: var(--jp-layout-color2);
}

.jp-icon-hover.jp-icon-alt :hover .jp-icon3-hover[stroke] {
  stroke: var(--jp-layout-color3);
}

.jp-icon-hover.jp-icon-alt :hover .jp-icon4-hover[stroke] {
  stroke: var(--jp-layout-color4);
}

/* inverse recolor the accent elements of an icon */
.jp-icon-hover.jp-icon-alt :hover .jp-icon-accent0-hover[fill] {
  fill: var(--jp-inverse-layout-color0);
}

.jp-icon-hover.jp-icon-alt :hover .jp-icon-accent1-hover[fill] {
  fill: var(--jp-inverse-layout-color1);
}

.jp-icon-hover.jp-icon-alt :hover .jp-icon-accent2-hover[fill] {
  fill: var(--jp-inverse-layout-color2);
}

.jp-icon-hover.jp-icon-alt :hover .jp-icon-accent3-hover[fill] {
  fill: var(--jp-inverse-layout-color3);
}

.jp-icon-hover.jp-icon-alt :hover .jp-icon-accent4-hover[fill] {
  fill: var(--jp-inverse-layout-color4);
}

.jp-icon-hover.jp-icon-alt :hover .jp-icon-accent0-hover[stroke] {
  stroke: var(--jp-inverse-layout-color0);
}

.jp-icon-hover.jp-icon-alt :hover .jp-icon-accent1-hover[stroke] {
  stroke: var(--jp-inverse-layout-color1);
}

.jp-icon-hover.jp-icon-alt :hover .jp-icon-accent2-hover[stroke] {
  stroke: var(--jp-inverse-layout-color2);
}

.jp-icon-hover.jp-icon-alt :hover .jp-icon-accent3-hover[stroke] {
  stroke: var(--jp-inverse-layout-color3);
}

.jp-icon-hover.jp-icon-alt :hover .jp-icon-accent4-hover[stroke] {
  stroke: var(--jp-inverse-layout-color4);
}

/*-----------------------------------------------------------------------------
| Copyright (c) Jupyter Development Team.
| Distributed under the terms of the Modified BSD License.
|----------------------------------------------------------------------------*/

.jp-IFrame {
  width: 100%;
  height: 100%;
}

.jp-IFrame > iframe {
  border: none;
}

/*
When drag events occur, `lm-mod-override-cursor` is added to the body.
Because iframes steal all cursor events, the following two rules are necessary
to suppress pointer events while resize drags are occurring. There may be a
better solution to this problem.
*/
body.lm-mod-override-cursor .jp-IFrame {
  position: relative;
}

body.lm-mod-override-cursor .jp-IFrame::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: transparent;
}

/*-----------------------------------------------------------------------------
| Copyright (c) 2014-2016, Jupyter Development Team.
|
| Distributed under the terms of the Modified BSD License.
|----------------------------------------------------------------------------*/

.jp-HoverBox {
  position: fixed;
}

/*-----------------------------------------------------------------------------
| Copyright (c) Jupyter Development Team.
| Distributed under the terms of the Modified BSD License.
|----------------------------------------------------------------------------*/

.jp-FormGroup-content fieldset {
  border: none;
  padding: 0;
  min-width: 0;
  width: 100%;
}

/* stylelint-disable selector-max-type */

.jp-FormGroup-content fieldset .jp-inputFieldWrapper input,
.jp-FormGroup-content fieldset .jp-inputFieldWrapper select,
.jp-FormGroup-content fieldset .jp-inputFieldWrapper textarea {
  font-size: var(--jp-content-font-size2);
  border-color: var(--jp-input-border-color);
  border-style: solid;
  border-radius: var(--jp-border-radius);
  border-width: 1px;
  padding: 6px 8px;
  background: none;
  color: var(--jp-ui-font-color0);
  height: inherit;
}

.jp-FormGroup-content fieldset input[type='checkbox'] {
  position: relative;
  top: 2px;
  margin-left: 0;
}

.jp-FormGroup-content button.jp-mod-styled {
  cursor: pointer;
}

.jp-FormGroup-content .checkbox label {
  cursor: pointer;
  font-size: var(--jp-content-font-size1);
}

.jp-FormGroup-content .jp-root > fieldset > legend {
  display: none;
}

.jp-FormGroup-content .jp-root > fieldset > p {
  display: none;
}

/** copy of `input.jp-mod-styled:focus` style */
.jp-FormGroup-content fieldset input:focus,
.jp-FormGroup-content fieldset select:focus {
  -moz-outline-radius: unset;
  outline: var(--jp-border-width) solid var(--md-blue-500);
  outline-offset: -1px;
  box-shadow: inset 0 0 4px var(--md-blue-300);
}

.jp-FormGroup-content fieldset input:hover:not(:focus),
.jp-FormGroup-content fieldset select:hover:not(:focus) {
  background-color: var(--jp-border-color2);
}

/* stylelint-enable selector-max-type */

.jp-FormGroup-content .checkbox .field-description {
  /* Disable default description field for checkbox:
   because other widgets do not have description fields,
   we add descriptions to each widget on the field level.
  */
  display: none;
}

.jp-FormGroup-content #root__description {
  display: none;
}

.jp-FormGroup-content .jp-modifiedIndicator {
  width: 5px;
  background-color: var(--jp-brand-color2);
  margin-top: 0;
  margin-left: calc(var(--jp-private-settingeditor-modifier-indent) * -1);
  flex-shrink: 0;
}

.jp-FormGroup-content .jp-modifiedIndicator.jp-errorIndicator {
  background-color: var(--jp-error-color0);
  margin-right: 0.5em;
}

/* RJSF ARRAY style */

.jp-arrayFieldWrapper legend {
  font-size: var(--jp-content-font-size2);
  color: var(--jp-ui-font-color0);
  flex-basis: 100%;
  padding: 4px 0;
  font-weight: var(--jp-content-heading-font-weight);
  border-bottom: 1px solid var(--jp-border-color2);
}

.jp-arrayFieldWrapper .field-description {
  padding: 4px 0;
  white-space: pre-wrap;
}

.jp-arrayFieldWrapper .array-item {
  width: 100%;
  border: 1px solid var(--jp-border-color2);
  border-radius: 4px;
  margin: 4px;
}

.jp-ArrayOperations {
  display: flex;
  margin-left: 8px;
}

.jp-ArrayOperationsButton {
  margin: 2px;
}

.jp-ArrayOperationsButton .jp-icon3[fill] {
  fill: var(--jp-ui-font-color0);
}

button.jp-ArrayOperationsButton.jp-mod-styled:disabled {
  cursor: not-allowed;
  opacity: 0.5;
}

/* RJSF form validation error */

.jp-FormGroup-content .validationErrors {
  color: var(--jp-error-color0);
}

/* Hide panel level error as duplicated the field level error */
.jp-FormGroup-content .panel.errors {
  display: none;
}

/* RJSF normal content (settings-editor) */

.jp-FormGroup-contentNormal {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
}

.jp-FormGroup-contentNormal .jp-FormGroup-contentItem {
  margin-left: 7px;
  color: var(--jp-ui-font-color0);
}

.jp-FormGroup-contentNormal .jp-FormGroup-description {
  flex-basis: 100%;
  padding: 4px 7px;
}

.jp-FormGroup-contentNormal .jp-FormGroup-default {
  flex-basis: 100%;
  padding: 4px 7px;
}

.jp-FormGroup-contentNormal .jp-FormGroup-fieldLabel {
  font-size: var(--jp-content-font-size1);
  font-weight: normal;
  min-width: 120px;
}

.jp-FormGroup-contentNormal fieldset:not(:first-child) {
  margin-left: 7px;
}

.jp-FormGroup-contentNormal .field-array-of-string .array-item {
  /* Display `jp-ArrayOperations` buttons side-by-side with content except
    for small screens where flex-wrap will place them one below the other.
  */
  display: flex;
  align-items: center;
  flex-wrap: wrap;
}

.jp-FormGroup-contentNormal .jp-objectFieldWrapper .form-group {
  padding: 2px 8px 2px var(--jp-private-settingeditor-modifier-indent);
  margin-top: 2px;
}

/* RJSF compact content (metadata-form) */

.jp-FormGroup-content.jp-FormGroup-contentCompact {
  width: 100%;
}

.jp-FormGroup-contentCompact .form-group {
  display: flex;
  padding: 0.5em 0.2em 0.5em 0;
}

.jp-FormGroup-contentCompact
  .jp-FormGroup-compactTitle
  .jp-FormGroup-description {
  font-size: var(--jp-ui-font-size1);
  color: var(--jp-ui-font-color2);
}

.jp-FormGroup-contentCompact .jp-FormGroup-fieldLabel {
  padding-bottom: 0.3em;
}

.jp-FormGroup-contentCompact .jp-inputFieldWrapper .form-control {
  width: 100%;
  box-sizing: border-box;
}

.jp-FormGroup-contentCompact .jp-arrayFieldWrapper .jp-FormGroup-compactTitle {
  padding-bottom: 7px;
}

.jp-FormGroup-contentCompact
  .jp-objectFieldWrapper
  .jp-objectFieldWrapper
  .form-group {
  padding: 2px 8px 2px var(--jp-private-settingeditor-modifier-indent);
  margin-top: 2px;
}

.jp-FormGroup-contentCompact ul.error-detail {
  margin-block-start: 0.5em;
  margin-block-end: 0.5em;
  padding-inline-start: 1em;
}

/*
 * Copyright (c) Jupyter Development Team.
 * Distributed under the terms of the Modified BSD License.
 */

.jp-SidePanel {
  display: flex;
  flex-direction: column;
  min-width: var(--jp-sidebar-min-width);
  overflow-y: auto;
  color: var(--jp-ui-font-color1);
  background: var(--jp-layout-color1);
  font-size: var(--jp-ui-font-size1);
}

.jp-SidePanel-header {
  flex: 0 0 auto;
  display: flex;
  border-bottom: var(--jp-border-width) solid var(--jp-border-color2);
  font-size: var(--jp-ui-font-size0);
  font-weight: 600;
  letter-spacing: 1px;
  margin: 0;
  padding: 2px;
  text-transform: uppercase;
}

.jp-SidePanel-toolbar {
  flex: 0 0 auto;
}

.jp-SidePanel-content {
  flex: 1 1 auto;
}

.jp-SidePanel-toolbar,
.jp-AccordionPanel-toolbar {
  height: var(--jp-private-toolbar-height);
}

.jp-SidePanel-toolbar.jp-Toolbar-micro {
  display: none;
}

.lm-AccordionPanel .jp-AccordionPanel-title {
  box-sizing: border-box;
  line-height: 25px;
  margin: 0;
  display: flex;
  align-items: center;
  background: var(--jp-layout-color1);
  color: var(--jp-ui-font-color1);
  border-bottom: var(--jp-border-width) solid var(--jp-toolbar-border-color);
  box-shadow: var(--jp-toolbar-box-shadow);
  font-size: var(--jp-ui-font-size0);
}

.jp-AccordionPanel-title {
  cursor: pointer;
  user-select: none;
  -moz-user-select: none;
  -webkit-user-select: none;
  text-transform: uppercase;
}

.lm-AccordionPanel[data-orientation='horizontal'] > .jp-AccordionPanel-title {
  /* Title is rotated for horizontal accordion panel using CSS */
  display: block;
  transform-origin: top left;
  transform: rotate(-90deg) translate(-100%);
}

.jp-AccordionPanel-title .lm-AccordionPanel-titleLabel {
  user-select: none;
  text-overflow: ellipsis;
  white-space: nowrap;
  overflow: hidden;
}

.jp-AccordionPanel-title .lm-AccordionPanel-titleCollapser {
  transform: rotate(-90deg);
  margin: auto 0;
  height: 16px;
}

.jp-AccordionPanel-title.lm-mod-expanded .lm-AccordionPanel-titleCollapser {
  transform: rotate(0deg);
}

.lm-AccordionPanel .jp-AccordionPanel-toolbar {
  background: none;
  box-shadow: none;
  border: none;
  margin-left: auto;
}

.lm-AccordionPanel .lm-SplitPanel-handle:hover {
  background: var(--jp-layout-color3);
}

.jp-text-truncated {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/*-----------------------------------------------------------------------------
| Copyright (c) 2017, Jupyter Development Team.
|
| Distributed under the terms of the Modified BSD License.
|----------------------------------------------------------------------------*/

.jp-Spinner {
  position: absolute;
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 10;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background: var(--jp-layout-color0);
  outline: none;
}

.jp-SpinnerContent {
  font-size: 10px;
  margin: 50px auto;
  text-indent: -9999em;
  width: 3em;
  height: 3em;
  border-radius: 50%;
  background: var(--jp-brand-color3);
  background: linear-gradient(
    to right,
    #f37626 10%,
    rgba(255, 255, 255, 0) 42%
  );
  position: relative;
  animation: load3 1s infinite linear, fadeIn 1s;
}

.jp-SpinnerContent::before {
  width: 50%;
  height: 50%;
  background: #f37626;
  border-radius: 100% 0 0;
  position: absolute;
  top: 0;
  left: 0;
  content: '';
}

.jp-SpinnerContent::after {
  background: var(--jp-layout-color0);
  width: 75%;
  height: 75%;
  border-radius: 50%;
  content: '';
  margin: auto;
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  right: 0;
}

@keyframes fadeIn {
  0% {
    opacity: 0;
  }

  100% {
    opacity: 1;
  }
}

@keyframes load3 {
  0% {
    transform: rotate(0deg);
  }

  100% {
    transform: rotate(360deg);
  }
}

/*-----------------------------------------------------------------------------
| Copyright (c) 2014-2017, Jupyter Development Team.
|
| Distributed under the terms of the Modified BSD License.
|----------------------------------------------------------------------------*/

button.jp-mod-styled {
  font-size: var(--jp-ui-font-size1);
  color: var(--jp-ui-font-color0);
  border: none;
  box-sizing: border-box;
  text-align: center;
  line-height: 32px;
  height: 32px;
  padding: 0 12px;
  letter-spacing: 0.8px;
  outline: none;
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
}

input.jp-mod-styled {
  background: var(--jp-input-background);
  height: 28px;
  box-sizing: border-box;
  border: var(--jp-border-width) solid var(--jp-border-color1);
  padding-left: 7px;
  padding-right: 7px;
  font-size: var(--jp-ui-font-size2);
  color: var(--jp-ui-font-color0);
  outline: none;
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
}

input[type='checkbox'].jp-mod-styled {
  appearance: checkbox;
  -webkit-appearance: checkbox;
  -moz-appearance: checkbox;
  height: auto;
}

input.jp-mod-styled:focus {
  border: var(--jp-border-width) solid var(--md-blue-500);
  box-shadow: inset 0 0 4px var(--md-blue-300);
}

.jp-select-wrapper {
  display: flex;
  position: relative;
  flex-direction: column;
  padding: 1px;
  background-color: var(--jp-layout-color1);
  box-sizing: border-box;
  margin-bottom: 12px;
}

.jp-select-wrapper:not(.multiple) {
  height: 28px;
}

.jp-select-wrapper.jp-mod-focused select.jp-mod-styled {
  border: var(--jp-border-width) solid var(--jp-input-active-border-color);
  box-shadow: var(--jp-input-box-shadow);
  background-color: var(--jp-input-active-background);
}

select.jp-mod-styled:hover {
  cursor: pointer;
  color: var(--jp-ui-font-color0);
  background-color: var(--jp-input-hover-background);
  box-shadow: inset 0 0 1px rgba(0, 0, 0, 0.5);
}

select.jp-mod-styled {
  flex: 1 1 auto;
  width: 100%;
  font-size: var(--jp-ui-font-size2);
  background: var(--jp-input-background);
  color: var(--jp-ui-font-color0);
  padding: 0 25px 0 8px;
  border: var(--jp-border-width) solid var(--jp-input-border-color);
  border-radius: 0;
  outline: none;
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
}

select.jp-mod-styled:not([multiple]) {
  height: 32px;
}

select.jp-mod-styled[multiple] {
  max-height: 200px;
  overflow-y: auto;
}

/*-----------------------------------------------------------------------------
| Copyright (c) Jupyter Development Team.
| Distributed under the terms of the Modified BSD License.
|----------------------------------------------------------------------------*/

.jp-switch {
  display: flex;
  align-items: center;
  padding-left: 4px;
  padding-right: 4px;
  font-size: var(--jp-ui-font-size1);
  background-color: transparent;
  color: var(--jp-ui-font-color1);
  border: none;
  height: 20px;
}

.jp-switch:hover {
  background-color: var(--jp-layout-color2);
}

.jp-switch-label {
  margin-right: 5px;
  font-family: var(--jp-ui-font-family);
}

.jp-switch-track {
  cursor: pointer;
  background-color: var(--jp-switch-color, var(--jp-border-color1));
  -webkit-transition: 0.4s;
  transition: 0.4s;
  border-radius: 34px;
  height: 16px;
  width: 35px;
  position: relative;
}

.jp-switch-track::before {
  content: '';
  position: absolute;
  height: 10px;
  width: 10px;
  margin: 3px;
  left: 0;
  background-color: var(--jp-ui-inverse-font-color1);
  -webkit-transition: 0.4s;
  transition: 0.4s;
  border-radius: 50%;
}

.jp-switch[aria-checked='true'] .jp-switch-track {
  background-color: var(--jp-switch-true-position-color, var(--jp-warn-color0));
}

.jp-switch[aria-checked='true'] .jp-switch-track::before {
  /* track width (35) - margins (3 + 3) - thumb width (10) */
  left: 19px;
}

/*-----------------------------------------------------------------------------
| Copyright (c) 2014-2016, Jupyter Development Team.
|
| Distributed under the terms of the Modified BSD License.
|----------------------------------------------------------------------------*/

:root {
  --jp-private-toolbar-height: calc(
    28px + var(--jp-border-width)
  ); /* leave 28px for content */
}

.jp-Toolbar {
  color: var(--jp-ui-font-color1);
  flex: 0 0 auto;
  display: flex;
  flex-direction: row;
  border-bottom: var(--jp-border-width) solid var(--jp-toolbar-border-color);
  box-shadow: var(--jp-toolbar-box-shadow);
  background: var(--jp-toolbar-background);
  min-height: var(--jp-toolbar-micro-height);
  padding: 2px;
  z-index: 8;
  overflow-x: hidden;
}

/* Toolbar items */

.jp-Toolbar > .jp-Toolbar-item.jp-Toolbar-spacer {
  flex-grow: 1;
  flex-shrink: 1;
}

.jp-Toolbar-item.jp-Toolbar-kernelStatus {
  display: inline-block;
  width: 32px;
  background-repeat: no-repeat;
  background-position: center;
  background-size: 16px;
}

.jp-Toolbar > .jp-Toolbar-item {
  flex: 0 0 auto;
  display: flex;
  padding-left: 1px;
  padding-right: 1px;
  font-size: var(--jp-ui-font-size1);
  line-height: var(--jp-private-toolbar-height);
  height: 100%;
}

/* Toolbar buttons */

/* This is the div we use to wrap the react component into a Widget */
div.jp-ToolbarButton {
  color: transparent;
  border: none;
  box-sizing: border-box;
  outline: none;
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  padding: 0;
  margin: 0;
}

button.jp-ToolbarButtonComponent {
  background: var(--jp-layout-color1);
  border: none;
  box-sizing: border-box;
  outline: none;
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  padding: 0 6px;
  margin: 0;
  height: 24px;
  border-radius: var(--jp-border-radius);
  display: flex;
  align-items: center;
  text-align: center;
  font-size: 14px;
  min-width: unset;
  min-height: unset;
}

button.jp-ToolbarButtonComponent:disabled {
  opacity: 0.4;
}

button.jp-ToolbarButtonComponent > span {
  padding: 0;
  flex: 0 0 auto;
}

button.jp-ToolbarButtonComponent .jp-ToolbarButtonComponent-label {
  font-size: var(--jp-ui-font-size1);
  line-height: 100%;
  padding-left: 2px;
  color: var(--jp-ui-font-color1);
  font-family: var(--jp-ui-font-family);
}

#jp-main-dock-panel[data-mode='single-document']
  .jp-MainAreaWidget
  > .jp-Toolbar.jp-Toolbar-micro {
  padding: 0;
  min-height: 0;
}

#jp-main-dock-panel[data-mode='single-document']
  .jp-MainAreaWidget
  > .jp-Toolbar {
  border: none;
  box-shadow: none;
}

/*
 * Copyright (c) Jupyter Development Team.
 * Distributed under the terms of the Modified BSD License.
 */

.jp-WindowedPanel-outer {
  position: relative;
  overflow-y: auto;
}

.jp-WindowedPanel-inner {
  position: relative;
}

.jp-WindowedPanel-window {
  position: absolute;
  left: 0;
  right: 0;
  overflow: visible;
}

/*-----------------------------------------------------------------------------
| Copyright (c) Jupyter Development Team.
| Distributed under the terms of the Modified BSD License.
|----------------------------------------------------------------------------*/

/* Sibling imports */

body {
  color: var(--jp-ui-font-color1);
  font-size: var(--jp-ui-font-size1);
}

/* Disable native link decoration styles everywhere outside of dialog boxes */
a {
  text-decoration: unset;
  color: unset;
}

a:hover {
  text-decoration: unset;
  color: unset;
}

/* Accessibility for links inside dialog box text */
.jp-Dialog-content a {
  text-decoration: revert;
  color: var(--jp-content-link-color);
}

.jp-Dialog-content a:hover {
  text-decoration: revert;
}

/* Styles for ui-components */
.jp-Button {
  color: var(--jp-ui-font-color2);
  border-radius: var(--jp-border-radius);
  padding: 0 12px;
  font-size: var(--jp-ui-font-size1);

  /* Copy from blueprint 3 */
  display: inline-flex;
  flex-direction: row;
  border: none;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  text-align: left;
  vertical-align: middle;
  min-height: 30px;
  min-width: 30px;
}

.jp-Button:disabled {
  cursor: not-allowed;
}

.jp-Button:empty {
  padding: 0 !important;
}

.jp-Button.jp-mod-small {
  min-height: 24px;
  min-width: 24px;
  font-size: 12px;
  padding: 0 7px;
}

/* Use our own theme for hover styles */
.jp-Button.jp-mod-minimal:hover {
  background-color: var(--jp-layout-color2);
}

.jp-Button.jp-mod-minimal {
  background: none;
}

.jp-InputGroup {
  display: block;
  position: relative;
}

.jp-InputGroup input {
  box-sizing: border-box;
  border: none;
  border-radius: 0;
  background-color: transparent;
  color: var(--jp-ui-font-color0);
  box-shadow: inset 0 0 0 var(--jp-border-width) var(--jp-input-border-color);
  padding-bottom: 0;
  padding-top: 0;
  padding-left: 10px;
  padding-right: 28px;
  position: relative;
  width: 100%;
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  font-size: 14px;
  font-weight: 400;
  height: 30px;
  line-height: 30px;
  outline: none;
  vertical-align: middle;
}

.jp-InputGroup input:focus {
  box-shadow: inset 0 0 0 var(--jp-border-width)
      var(--jp-input-active-box-shadow-color),
    inset 0 0 0 3px var(--jp-input-active-box-shadow-color);
}

.jp-InputGroup input:disabled {
  cursor: not-allowed;
  resize: block;
  background-color: var(--jp-layout-color2);
  color: var(--jp-ui-font-color2);
}

.jp-InputGroup input:disabled ~ span {
  cursor: not-allowed;
  color: var(--jp-ui-font-color2);
}

.jp-InputGroup input::placeholder,
input::placeholder {
  color: var(--jp-ui-font-color2);
}

.jp-InputGroupAction {
  position: absolute;
  bottom: 1px;
  right: 0;
  padding: 6px;
}

.jp-HTMLSelect.jp-DefaultStyle select {
  background-color: initial;
  border: none;
  border-radius: 0;
  box-shadow: none;
  color: var(--jp-ui-font-color0);
  display: block;
  font-size: var(--jp-ui-font-size1);
  font-family: var(--jp-ui-font-family);
  height: 24px;
  line-height: 14px;
  padding: 0 25px 0 10px;
  text-align: left;
  -moz-appearance: none;
  -webkit-appearance: none;
}

.jp-HTMLSelect.jp-DefaultStyle select:disabled {
  background-color: var(--jp-layout-color2);
  color: var(--jp-ui-font-color2);
  cursor: not-allowed;
  resize: block;
}

.jp-HTMLSelect.jp-DefaultStyle select:disabled ~ span {
  cursor: not-allowed;
}

/* Use our own theme for hover and option styles */
/* stylelint-disable-next-line selector-max-type */
.jp-HTMLSelect.jp-DefaultStyle select:hover,
.jp-HTMLSelect.jp-DefaultStyle select > option {
  background-color: var(--jp-layout-color2);
  color: var(--jp-ui-font-color0);
}

select {
  box-sizing: border-box;
}

/*-----------------------------------------------------------------------------
| Copyright (c) Jupyter Development Team.
| Distributed under the terms of the Modified BSD License.
|----------------------------------------------------------------------------*/

/*-----------------------------------------------------------------------------
| Styles
|----------------------------------------------------------------------------*/

.jp-StatusBar-Widget {
  display: flex;
  align-items: center;
  background: var(--jp-layout-color2);
  min-height: var(--jp-statusbar-height);
  justify-content: space-between;
  padding: 0 10px;
}

.jp-StatusBar-Left {
  display: flex;
  align-items: center;
  flex-direction: row;
}

.jp-StatusBar-Middle {
  display: flex;
  align-items: center;
}

.jp-StatusBar-Right {
  display: flex;
  align-items: center;
  flex-direction: row-reverse;
}

.jp-StatusBar-Item {
  max-height: var(--jp-statusbar-height);
  margin: 0 2px;
  height: var(--jp-statusbar-height);
  white-space: nowrap;
  text-overflow: ellipsis;
  color: var(--jp-ui-font-color1);
  padding: 0 6px;
}

.jp-mod-highlighted:hover {
  background-color: var(--jp-layout-color3);
}

.jp-mod-clicked {
  background-color: var(--jp-brand-color1);
}

.jp-mod-clicked:hover {
  background-color: var(--jp-brand-color0);
}

.jp-mod-clicked .jp-StatusBar-TextItem {
  color: var(--jp-ui-inverse-font-color1);
}

.jp-StatusBar-HoverItem {
  box-shadow: '0px 4px 4px rgba(0, 0, 0, 0.25)';
}

.jp-StatusBar-TextItem {
  font-size: var(--jp-ui-font-size1);
  font-family: var(--jp-ui-font-family);
  line-height: 24px;
  color: var(--jp-ui-font-color1);
}

.jp-StatusBar-GroupItem {
  display: flex;
  align-items: center;
  flex-direction: row;
}

.jp-Statusbar-ProgressCircle svg {
  display: block;
  margin: 0 auto;
  width: 16px;
  height: 24px;
  align-self: normal;
}

.jp-Statusbar-ProgressCircle path {
  fill: var(--jp-inverse-layout-color3);
}

.jp-Statusbar-ProgressBar-progress-bar {
  height: 10px;
  width: 100px;
  border: solid 0.25px var(--jp-brand-color2);
  border-radius: 3px;
  overflow: hidden;
  align-self: center;
}

.jp-Statusbar-ProgressBar-progress-bar > div {
  background-color: var(--jp-brand-color2);
  background-image: linear-gradient(
    -45deg,
    rgba(255, 255, 255, 0.2) 25%,
    transparent 25%,
    transparent 50%,
    rgba(255, 255, 255, 0.2) 50%,
    rgba(255, 255, 255, 0.2) 75%,
    transparent 75%,
    transparent
  );
  background-size: 40px 40px;
  float: left;
  width: 0%;
  height: 100%;
  font-size: 12px;
  line-height: 14px;
  color: #fff;
  text-align: center;
  animation: jp-Statusbar-ExecutionTime-progress-bar 2s linear infinite;
}

.jp-Statusbar-ProgressBar-progress-bar p {
  color: var(--jp-ui-font-color1);
  font-family: var(--jp-ui-font-family);
  font-size: var(--jp-ui-font-size1);
  line-height: 10px;
  width: 100px;
}

@keyframes jp-Statusbar-ExecutionTime-progress-bar {
  0% {
    background-position: 0 0;
  }

  100% {
    background-position: 40px 40px;
  }
}

/*-----------------------------------------------------------------------------
| Copyright (c) Jupyter Development Team.
| Distributed under the terms of the Modified BSD License.
|----------------------------------------------------------------------------*/

/*-----------------------------------------------------------------------------
| Variables
|----------------------------------------------------------------------------*/

:root {
  --jp-private-commandpalette-search-height: 28px;
}

/*-----------------------------------------------------------------------------
| Overall styles
|----------------------------------------------------------------------------*/

.lm-CommandPalette {
  padding-bottom: 0;
  color: var(--jp-ui-font-color1);
  background: var(--jp-layout-color1);

  /* This is needed so that all font sizing of children done in ems is
   * relative to this base size */
  font-size: var(--jp-ui-font-size1);
}

/*-----------------------------------------------------------------------------
| Modal variant
|----------------------------------------------------------------------------*/

.jp-ModalCommandPalette {
  position: absolute;
  z-index: 10000;
  top: 38px;
  left: 30%;
  margin: 0;
  padding: 4px;
  width: 40%;
  box-shadow: var(--jp-elevation-z4);
  border-radius: 4px;
  background: var(--jp-layout-color0);
}

.jp-ModalCommandPalette .lm-CommandPalette {
  max-height: 40vh;
}

.jp-ModalCommandPalette .lm-CommandPalette .lm-close-icon::after {
  display: none;
}

.jp-ModalCommandPalette .lm-CommandPalette .lm-CommandPalette-header {
  display: none;
}

.jp-ModalCommandPalette .lm-CommandPalette .lm-CommandPalette-item {
  margin-left: 4px;
  margin-right: 4px;
}

.jp-ModalCommandPalette
  .lm-CommandPalette
  .lm-CommandPalette-item.lm-mod-disabled {
  display: none;
}

/*-----------------------------------------------------------------------------
| Search
|----------------------------------------------------------------------------*/

.lm-CommandPalette-search {
  padding: 4px;
  background-color: var(--jp-layout-color1);
  z-index: 2;
}

.lm-CommandPalette-wrapper {
  overflow: overlay;
  padding: 0 9px;
  background-color: var(--jp-input-active-background);
  height: 30px;
  box-shadow: inset 0 0 0 var(--jp-border-width) var(--jp-input-border-color);
}

.lm-CommandPalette.lm-mod-focused .lm-CommandPalette-wrapper {
  box-shadow: inset 0 0 0 1px var(--jp-input-active-box-shadow-color),
    inset 0 0 0 3px var(--jp-input-active-box-shadow-color);
}

.jp-SearchIconGroup {
  color: white;
  background-color: var(--jp-brand-color1);
  position: absolute;
  top: 4px;
  right: 4px;
  padding: 5px 5px 1px;
}

.jp-SearchIconGroup svg {
  height: 20px;
  width: 20px;
}

.jp-SearchIconGroup .jp-icon3[fill] {
  fill: var(--jp-layout-color0);
}

.lm-CommandPalette-input {
  background: transparent;
  width: calc(100% - 18px);
  float: left;
  border: none;
  outline: none;
  font-size: var(--jp-ui-font-size1);
  color: var(--jp-ui-font-color0);
  line-height: var(--jp-private-commandpalette-search-height);
}

.lm-CommandPalette-input::-webkit-input-placeholder,
.lm-CommandPalette-input::-moz-placeholder,
.lm-CommandPalette-input:-ms-input-placeholder {
  color: var(--jp-ui-font-color2);
  font-size: var(--jp-ui-font-size1);
}

/*-----------------------------------------------------------------------------
| Results
|----------------------------------------------------------------------------*/

.lm-CommandPalette-header:first-child {
  margin-top: 0;
}

.lm-CommandPalette-header {
  border-bottom: solid var(--jp-border-width) var(--jp-border-color2);
  color: var(--jp-ui-font-color1);
  cursor: pointer;
  display: flex;
  font-size: var(--jp-ui-font-size0);
  font-weight: 600;
  letter-spacing: 1px;
  margin-top: 8px;
  padding: 8px 0 8px 12px;
  text-transform: uppercase;
}

.lm-CommandPalette-header.lm-mod-active {
  background: var(--jp-layout-color2);
}

.lm-CommandPalette-header > mark {
  background-color: transparent;
  font-weight: bold;
  color: var(--jp-ui-font-color1);
}

.lm-CommandPalette-item {
  padding: 4px 12px 4px 4px;
  color: var(--jp-ui-font-color1);
  font-size: var(--jp-ui-font-size1);
  font-weight: 400;
  display: flex;
}

.lm-CommandPalette-item.lm-mod-disabled {
  color: var(--jp-ui-font-color2);
}

.lm-CommandPalette-item.lm-mod-active {
  color: var(--jp-ui-inverse-font-color1);
  background: var(--jp-brand-color1);
}

.lm-CommandPalette-item.lm-mod-active .lm-CommandPalette-itemLabel > mark {
  color: var(--jp-ui-inverse-font-color0);
}

.lm-CommandPalette-item.lm-mod-active .jp-icon-selectable[fill] {
  fill: var(--jp-layout-color0);
}

.lm-CommandPalette-item.lm-mod-active:hover:not(.lm-mod-disabled) {
  color: var(--jp-ui-inverse-font-color1);
  background: var(--jp-brand-color1);
}

.lm-CommandPalette-item:hover:not(.lm-mod-active):not(.lm-mod-disabled) {
  background: var(--jp-layout-color2);
}

.lm-CommandPalette-itemContent {
  overflow: hidden;
}

.lm-CommandPalette-itemLabel > mark {
  color: var(--jp-ui-font-color0);
  background-color: transparent;
  font-weight: bold;
}

.lm-CommandPalette-item.lm-mod-disabled mark {
  color: var(--jp-ui-font-color2);
}

.lm-CommandPalette-item .lm-CommandPalette-itemIcon {
  margin: 0 4px 0 0;
  position: relative;
  width: 16px;
  top: 2px;
  flex: 0 0 auto;
}

.lm-CommandPalette-item.lm-mod-disabled .lm-CommandPalette-itemIcon {
  opacity: 0.6;
}

.lm-CommandPalette-item .lm-CommandPalette-itemShortcut {
  flex: 0 0 auto;
}

.lm-CommandPalette-itemCaption {
  display: none;
}

.lm-CommandPalette-content {
  background-color: var(--jp-layout-color1);
}

.lm-CommandPalette-content:empty::after {
  content: 'No results';
  margin: auto;
  margin-top: 20px;
  width: 100px;
  display: block;
  font-size: var(--jp-ui-font-size2);
  font-family: var(--jp-ui-font-family);
  font-weight: lighter;
}

.lm-CommandPalette-emptyMessage {
  text-align: center;
  margin-top: 24px;
  line-height: 1.32;
  padding: 0 8px;
  color: var(--jp-content-font-color3);
}

/*-----------------------------------------------------------------------------
| Copyright (c) 2014-2017, Jupyter Development Team.
|
| Distributed under the terms of the Modified BSD License.
|----------------------------------------------------------------------------*/

.jp-Dialog {
  position: absolute;
  z-index: 10000;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  top: 0;
  left: 0;
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
  background: var(--jp-dialog-background);
}

.jp-Dialog-content {
  display: flex;
  flex-direction: column;
  margin-left: auto;
  margin-right: auto;
  background: var(--jp-layout-color1);
  padding: 24px 24px 12px;
  min-width: 300px;
  min-height: 150px;
  max-width: 1000px;
  max-height: 500px;
  box-sizing: border-box;
  box-shadow: var(--jp-elevation-z20);
  word-wrap: break-word;
  border-radius: var(--jp-border-radius);

  /* This is needed so that all font sizing of children done in ems is
   * relative to this base size */
  font-size: var(--jp-ui-font-size1);
  color: var(--jp-ui-font-color1);
  resize: both;
}

.jp-Dialog-content.jp-Dialog-content-small {
  max-width: 500px;
}

.jp-Dialog-button {
  overflow: visible;
}

button.jp-Dialog-button:focus {
  outline: 1px solid var(--jp-brand-color1);
  outline-offset: 4px;
  -moz-outline-radius: 0;
}

button.jp-Dialog-button:focus::-moz-focus-inner {
  border: 0;
}

button.jp-Dialog-button.jp-mod-styled.jp-mod-accept:focus,
button.jp-Dialog-button.jp-mod-styled.jp-mod-warn:focus,
button.jp-Dialog-button.jp-mod-styled.jp-mod-reject:focus {
  outline-offset: 4px;
  -moz-outline-radius: 0;
}

button.jp-Dialog-button.jp-mod-styled.jp-mod-accept:focus {
  outline: 1px solid var(--jp-accept-color-normal, var(--jp-brand-color1));
}

button.jp-Dialog-button.jp-mod-styled.jp-mod-warn:focus {
  outline: 1px solid var(--jp-warn-color-normal, var(--jp-error-color1));
}

button.jp-Dialog-button.jp-mod-styled.jp-mod-reject:focus {
  outline: 1px solid var(--jp-reject-color-normal, var(--md-grey-600));
}

button.jp-Dialog-close-button {
  padding: 0;
  height: 100%;
  min-width: unset;
  min-height: unset;
}

.jp-Dialog-header {
  display: flex;
  justify-content: space-between;
  flex: 0 0 auto;
  padding-bottom: 12px;
  font-size: var(--jp-ui-font-size3);
  font-weight: 400;
  color: var(--jp-ui-font-color1);
}

.jp-Dialog-body {
  display: flex;
  flex-direction: column;
  flex: 1 1 auto;
  font-size: var(--jp-ui-font-size1);
  background: var(--jp-layout-color1);
  color: var(--jp-ui-font-color1);
  overflow: auto;
}

.jp-Dialog-footer {
  display: flex;
  flex-direction: row;
  justify-content: flex-end;
  align-items: center;
  flex: 0 0 auto;
  margin-left: -12px;
  margin-right: -12px;
  padding: 12px;
}

.jp-Dialog-checkbox {
  padding-right: 5px;
}

.jp-Dialog-checkbox > input:focus-visible {
  outline: 1px solid var(--jp-input-active-border-color);
  outline-offset: 1px;
}

.jp-Dialog-spacer {
  flex: 1 1 auto;
}

.jp-Dialog-title {
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.jp-Dialog-body > .jp-select-wrapper {
  width: 100%;
}

.jp-Dialog-body > button {
  padding: 0 16px;
}

.jp-Dialog-body > label {
  line-height: 1.4;
  color: var(--jp-ui-font-color0);
}

.jp-Dialog-button.jp-mod-styled:not(:last-child) {
  margin-right: 12px;
}

/*
 * Copyright (c) Jupyter Development Team.
 * Distributed under the terms of the Modified BSD License.
 */

.jp-Input-Boolean-Dialog {
  flex-direction: row-reverse;
  align-items: end;
  width: 100%;
}

.jp-Input-Boolean-Dialog > label {
  flex: 1 1 auto;
}

/*-----------------------------------------------------------------------------
| Copyright (c) 2014-2016, Jupyter Development Team.
|
| Distributed under the terms of the Modified BSD License.
|----------------------------------------------------------------------------*/

.jp-MainAreaWidget > :focus {
  outline: none;
}

.jp-MainAreaWidget .jp-MainAreaWidget-error {
  padding: 6px;
}

.jp-MainAreaWidget .jp-MainAreaWidget-error > pre {
  width: auto;
  padding: 10px;
  background: var(--jp-error-color3);
  border: var(--jp-border-width) solid var(--jp-error-color1);
  border-radius: var(--jp-border-radius);
  color: var(--jp-ui-font-color1);
  font-size: var(--jp-ui-font-size1);
  white-space: pre-wrap;
  word-wrap: break-word;
}

/*
 * Copyright (c) Jupyter Development Team.
 * Distributed under the terms of the Modified BSD License.
 */

/**
 * google-material-color v1.2.6
 * https://github.com/danlevan/google-material-color
 */
:root {
  --md-red-50: #ffebee;
  --md-red-100: #ffcdd2;
  --md-red-200: #ef9a9a;
  --md-red-300: #e57373;
  --md-red-400: #ef5350;
  --md-red-500: #f44336;
  --md-red-600: #e53935;
  --md-red-700: #d32f2f;
  --md-red-800: #c62828;
  --md-red-900: #b71c1c;
  --md-red-A100: #ff8a80;
  --md-red-A200: #ff5252;
  --md-red-A400: #ff1744;
  --md-red-A700: #d50000;
  --md-pink-50: #fce4ec;
  --md-pink-100: #f8bbd0;
  --md-pink-200: #f48fb1;
  --md-pink-300: #f06292;
  --md-pink-400: #ec407a;
  --md-pink-500: #e91e63;
  --md-pink-600: #d81b60;
  --md-pink-700: #c2185b;
  --md-pink-800: #ad1457;
  --md-pink-900: #880e4f;
  --md-pink-A100: #ff80ab;
  --md-pink-A200: #ff4081;
  --md-pink-A400: #f50057;
  --md-pink-A700: #c51162;
  --md-purple-50: #f3e5f5;
  --md-purple-100: #e1bee7;
  --md-purple-200: #ce93d8;
  --md-purple-300: #ba68c8;
  --md-purple-400: #ab47bc;
  --md-purple-500: #9c27b0;
  --md-purple-600: #8e24aa;
  --md-purple-700: #7b1fa2;
  --md-purple-800: #6a1b9a;
  --md-purple-900: #4a148c;
  --md-purple-A100: #ea80fc;
  --md-purple-A200: #e040fb;
  --md-purple-A400: #d500f9;
  --md-purple-A700: #a0f;
  --md-deep-purple-50: #ede7f6;
  --md-deep-purple-100: #d1c4e9;
  --md-deep-purple-200: #b39ddb;
  --md-deep-purple-300: #9575cd;
  --md-deep-purple-400: #7e57c2;
  --md-deep-purple-500: #673ab7;
  --md-deep-purple-600: #5e35b1;
  --md-deep-purple-700: #512da8;
  --md-deep-purple-800: #4527a0;
  --md-deep-purple-900: #311b92;
  --md-deep-purple-A100: #b388ff;
  --md-deep-purple-A200: #7c4dff;
  --md-deep-purple-A400: #651fff;
  --md-deep-purple-A700: #6200ea;
  --md-indigo-50: #e8eaf6;
  --md-indigo-100: #c5cae9;
  --md-indigo-200: #9fa8da;
  --md-indigo-300: #7986cb;
  --md-indigo-400: #5c6bc0;
  --md-indigo-500: #3f51b5;
  --md-indigo-600: #3949ab;
  --md-indigo-700: #303f9f;
  --md-indigo-800: #283593;
  --md-indigo-900: #1a237e;
  --md-indigo-A100: #8c9eff;
  --md-indigo-A200: #536dfe;
  --md-indigo-A400: #3d5afe;
  --md-indigo-A700: #304ffe;
  --md-blue-50: #e3f2fd;
  --md-blue-100: #bbdefb;
  --md-blue-200: #90caf9;
  --md-blue-300: #64b5f6;
  --md-blue-400: #42a5f5;
  --md-blue-500: #2196f3;
  --md-blue-600: #1e88e5;
  --md-blue-700: #1976d2;
  --md-blue-800: #1565c0;
  --md-blue-900: #0d47a1;
  --md-blue-A100: #82b1ff;
  --md-blue-A200: #448aff;
  --md-blue-A400: #2979ff;
  --md-blue-A700: #2962ff;
  --md-light-blue-50: #e1f5fe;
  --md-light-blue-100: #b3e5fc;
  --md-light-blue-200: #81d4fa;
  --md-light-blue-300: #4fc3f7;
  --md-light-blue-400: #29b6f6;
  --md-light-blue-500: #03a9f4;
  --md-light-blue-600: #039be5;
  --md-light-blue-700: #0288d1;
  --md-light-blue-800: #0277bd;
  --md-light-blue-900: #01579b;
  --md-light-blue-A100: #80d8ff;
  --md-light-blue-A200: #40c4ff;
  --md-light-blue-A400: #00b0ff;
  --md-light-blue-A700: #0091ea;
  --md-cyan-50: #e0f7fa;
  --md-cyan-100: #b2ebf2;
  --md-cyan-200: #80deea;
  --md-cyan-300: #4dd0e1;
  --md-cyan-400: #26c6da;
  --md-cyan-500: #00bcd4;
  --md-cyan-600: #00acc1;
  --md-cyan-700: #0097a7;
  --md-cyan-800: #00838f;
  --md-cyan-900: #006064;
  --md-cyan-A100: #84ffff;
  --md-cyan-A200: #18ffff;
  --md-cyan-A400: #00e5ff;
  --md-cyan-A700: #00b8d4;
  --md-teal-50: #e0f2f1;
  --md-teal-100: #b2dfdb;
  --md-teal-200: #80cbc4;
  --md-teal-300: #4db6ac;
  --md-teal-400: #26a69a;
  --md-teal-500: #009688;
  --md-teal-600: #00897b;
  --md-teal-700: #00796b;
  --md-teal-800: #00695c;
  --md-teal-900: #004d40;
  --md-teal-A100: #a7ffeb;
  --md-teal-A200: #64ffda;
  --md-teal-A400: #1de9b6;
  --md-teal-A700: #00bfa5;
  --md-green-50: #e8f5e9;
  --md-green-100: #c8e6c9;
  --md-green-200: #a5d6a7;
  --md-green-300: #81c784;
  --md-green-400: #66bb6a;
  --md-green-500: #4caf50;
  --md-green-600: #43a047;
  --md-green-700: #388e3c;
  --md-green-800: #2e7d32;
  --md-green-900: #1b5e20;
  --md-green-A100: #b9f6ca;
  --md-green-A200: #69f0ae;
  --md-green-A400: #00e676;
  --md-green-A700: #00c853;
  --md-light-green-50: #f1f8e9;
  --md-light-green-100: #dcedc8;
  --md-light-green-200: #c5e1a5;
  --md-light-green-300: #aed581;
  --md-light-green-400: #9ccc65;
  --md-light-green-500: #8bc34a;
  --md-light-green-600: #7cb342;
  --md-light-green-700: #689f38;
  --md-light-green-800: #558b2f;
  --md-light-green-900: #33691e;
  --md-light-green-A100: #ccff90;
  --md-light-green-A200: #b2ff59;
  --md-light-green-A400: #76ff03;
  --md-light-green-A700: #64dd17;
  --md-lime-50: #f9fbe7;
  --md-lime-100: #f0f4c3;
  --md-lime-200: #e6ee9c;
  --md-lime-300: #dce775;
  --md-lime-400: #d4e157;
  --md-lime-500: #cddc39;
  --md-lime-600: #c0ca33;
  --md-lime-700: #afb42b;
  --md-lime-800: #9e9d24;
  --md-lime-900: #827717;
  --md-lime-A100: #f4ff81;
  --md-lime-A200: #eeff41;
  --md-lime-A400: #c6ff00;
  --md-lime-A700: #aeea00;
  --md-yellow-50: #fffde7;
  --md-yellow-100: #fff9c4;
  --md-yellow-200: #fff59d;
  --md-yellow-300: #fff176;
  --md-yellow-400: #ffee58;
  --md-yellow-500: #ffeb3b;
  --md-yellow-600: #fdd835;
  --md-yellow-700: #fbc02d;
  --md-yellow-800: #f9a825;
  --md-yellow-900: #f57f17;
  --md-yellow-A100: #ffff8d;
  --md-yellow-A200: #ff0;
  --md-yellow-A400: #ffea00;
  --md-yellow-A700: #ffd600;
  --md-amber-50: #fff8e1;
  --md-amber-100: #ffecb3;
  --md-amber-200: #ffe082;
  --md-amber-300: #ffd54f;
  --md-amber-400: #ffca28;
  --md-amber-500: #ffc107;
  --md-amber-600: #ffb300;
  --md-amber-700: #ffa000;
  --md-amber-800: #ff8f00;
  --md-amber-900: #ff6f00;
  --md-amber-A100: #ffe57f;
  --md-amber-A200: #ffd740;
  --md-amber-A400: #ffc400;
  --md-amber-A700: #ffab00;
  --md-orange-50: #fff3e0;
  --md-orange-100: #ffe0b2;
  --md-orange-200: #ffcc80;
  --md-orange-300: #ffb74d;
  --md-orange-400: #ffa726;
  --md-orange-500: #ff9800;
  --md-orange-600: #fb8c00;
  --md-orange-700: #f57c00;
  --md-orange-800: #ef6c00;
  --md-orange-900: #e65100;
  --md-orange-A100: #ffd180;
  --md-orange-A200: #ffab40;
  --md-orange-A400: #ff9100;
  --md-orange-A700: #ff6d00;
  --md-deep-orange-50: #fbe9e7;
  --md-deep-orange-100: #ffccbc;
  --md-deep-orange-200: #ffab91;
  --md-deep-orange-300: #ff8a65;
  --md-deep-orange-400: #ff7043;
  --md-deep-orange-500: #ff5722;
  --md-deep-orange-600: #f4511e;
  --md-deep-orange-700: #e64a19;
  --md-deep-orange-800: #d84315;
  --md-deep-orange-900: #bf360c;
  --md-deep-orange-A100: #ff9e80;
  --md-deep-orange-A200: #ff6e40;
  --md-deep-orange-A400: #ff3d00;
  --md-deep-orange-A700: #dd2c00;
  --md-brown-50: #efebe9;
  --md-brown-100: #d7ccc8;
  --md-brown-200: #bcaaa4;
  --md-brown-300: #a1887f;
  --md-brown-400: #8d6e63;
  --md-brown-500: #795548;
  --md-brown-600: #6d4c41;
  --md-brown-700: #5d4037;
  --md-brown-800: #4e342e;
  --md-brown-900: #3e2723;
  --md-grey-50: #fafafa;
  --md-grey-100: #f5f5f5;
  --md-grey-200: #eee;
  --md-grey-300: #e0e0e0;
  --md-grey-400: #bdbdbd;
  --md-grey-500: #9e9e9e;
  --md-grey-600: #757575;
  --md-grey-700: #616161;
  --md-grey-800: #424242;
  --md-grey-900: #212121;
  --md-blue-grey-50: #eceff1;
  --md-blue-grey-100: #cfd8dc;
  --md-blue-grey-200: #b0bec5;
  --md-blue-grey-300: #90a4ae;
  --md-blue-grey-400: #78909c;
  --md-blue-grey-500: #607d8b;
  --md-blue-grey-600: #546e7a;
  --md-blue-grey-700: #455a64;
  --md-blue-grey-800: #37474f;
  --md-blue-grey-900: #263238;
}

/*-----------------------------------------------------------------------------
| Copyright (c) 2014-2017, Jupyter Development Team.
|
| Distributed under the terms of the Modified BSD License.
|----------------------------------------------------------------------------*/

/*-----------------------------------------------------------------------------
| Copyright (c) Jupyter Development Team.
| Distributed under the terms of the Modified BSD License.
|----------------------------------------------------------------------------*/

/*-----------------------------------------------------------------------------
| RenderedText
|----------------------------------------------------------------------------*/

:root {
  /* This is the padding value to fill the gaps between lines containing spans with background color. */
  --jp-private-code-span-padding: calc(
    (var(--jp-code-line-height) - 1) * var(--jp-code-font-size) / 2
  );
}

.jp-RenderedText {
  text-align: left;
  padding-left: var(--jp-code-padding);
  line-height: var(--jp-code-line-height);
  font-family: var(--jp-code-font-family);
}

.jp-RenderedText pre,
.jp-RenderedJavaScript pre,
.jp-RenderedHTMLCommon pre {
  color: var(--jp-content-font-color1);
  font-size: var(--jp-code-font-size);
  border: none;
  margin: 0;
  padding: 0;
}

.jp-RenderedText pre a:link {
  text-decoration: none;
  color: var(--jp-content-link-color);
}

.jp-RenderedText pre a:hover {
  text-decoration: underline;
  color: var(--jp-content-link-color);
}

.jp-RenderedText pre a:visited {
  text-decoration: none;
  color: var(--jp-content-link-color);
}

/* console foregrounds and backgrounds */
.jp-RenderedText pre .ansi-black-fg {
  color: #3e424d;
}

.jp-RenderedText pre .ansi-red-fg {
  color: #e75c58;
}

.jp-RenderedText pre .ansi-green-fg {
  color: #00a250;
}

.jp-RenderedText pre .ansi-yellow-fg {
  color: #ddb62b;
}

.jp-RenderedText pre .ansi-blue-fg {
  color: #208ffb;
}

.jp-RenderedText pre .ansi-magenta-fg {
  color: #d160c4;
}

.jp-RenderedText pre .ansi-cyan-fg {
  color: #60c6c8;
}

.jp-RenderedText pre .ansi-white-fg {
  color: #c5c1b4;
}

.jp-RenderedText pre .ansi-black-bg {
  background-color: #3e424d;
  padding: var(--jp-private-code-span-padding) 0;
}

.jp-RenderedText pre .ansi-red-bg {
  background-color: #e75c58;
  padding: var(--jp-private-code-span-padding) 0;
}

.jp-RenderedText pre .ansi-green-bg {
  background-color: #00a250;
  padding: var(--jp-private-code-span-padding) 0;
}

.jp-RenderedText pre .ansi-yellow-bg {
  background-color: #ddb62b;
  padding: var(--jp-private-code-span-padding) 0;
}

.jp-RenderedText pre .ansi-blue-bg {
  background-color: #208ffb;
  padding: var(--jp-private-code-span-padding) 0;
}

.jp-RenderedText pre .ansi-magenta-bg {
  background-color: #d160c4;
  padding: var(--jp-private-code-span-padding) 0;
}

.jp-RenderedText pre .ansi-cyan-bg {
  background-color: #60c6c8;
  padding: var(--jp-private-code-span-padding) 0;
}

.jp-RenderedText pre .ansi-white-bg {
  background-color: #c5c1b4;
  padding: var(--jp-private-code-span-padding) 0;
}

.jp-RenderedText pre .ansi-black-intense-fg {
  color: #282c36;
}

.jp-RenderedText pre .ansi-red-intense-fg {
  color: #b22b31;
}

.jp-RenderedText pre .ansi-green-intense-fg {
  color: #007427;
}

.jp-RenderedText pre .ansi-yellow-intense-fg {
  color: #b27d12;
}

.jp-RenderedText pre .ansi-blue-intense-fg {
  color: #0065ca;
}

.jp-RenderedText pre .ansi-magenta-intense-fg {
  color: #a03196;
}

.jp-RenderedText pre .ansi-cyan-intense-fg {
  color: #258f8f;
}

.jp-RenderedText pre .ansi-white-intense-fg {
  color: #a1a6b2;
}

.jp-RenderedText pre .ansi-black-intense-bg {
  background-color: #282c36;
  padding: var(--jp-private-code-span-padding) 0;
}

.jp-RenderedText pre .ansi-red-intense-bg {
  background-color: #b22b31;
  padding: var(--jp-private-code-span-padding) 0;
}

.jp-RenderedText pre .ansi-green-intense-bg {
  background-color: #007427;
  padding: var(--jp-private-code-span-padding) 0;
}

.jp-RenderedText pre .ansi-yellow-intense-bg {
  background-color: #b27d12;
  padding: var(--jp-private-code-span-padding) 0;
}

.jp-RenderedText pre .ansi-blue-intense-bg {
  background-color: #0065ca;
  padding: var(--jp-private-code-span-padding) 0;
}

.jp-RenderedText pre .ansi-magenta-intense-bg {
  background-color: #a03196;
  padding: var(--jp-private-code-span-padding) 0;
}

.jp-RenderedText pre .ansi-cyan-intense-bg {
  background-color: #258f8f;
  padding: var(--jp-private-code-span-padding) 0;
}

.jp-RenderedText pre .ansi-white-intense-bg {
  background-color: #a1a6b2;
  padding: var(--jp-private-code-span-padding) 0;
}

.jp-RenderedText pre .ansi-default-inverse-fg {
  color: var(--jp-ui-inverse-font-color0);
}

.jp-RenderedText pre .ansi-default-inverse-bg {
  background-color: var(--jp-inverse-layout-color0);
  padding: var(--jp-private-code-span-padding) 0;
}

.jp-RenderedText pre .ansi-bold {
  font-weight: bold;
}

.jp-RenderedText pre .ansi-underline {
  text-decoration: underline;
}

.jp-RenderedText[data-mime-type='application/vnd.jupyter.stderr'] {
  background: var(--jp-rendermime-error-background);
  padding-top: var(--jp-code-padding);
}

/*-----------------------------------------------------------------------------
| RenderedLatex
|----------------------------------------------------------------------------*/

.jp-RenderedLatex {
  color: var(--jp-content-font-color1);
  font-size: var(--jp-content-font-size1);
  line-height: var(--jp-content-line-height);
}

/* Left-justify outputs.*/
.jp-OutputArea-output.jp-RenderedLatex {
  padding: var(--jp-code-padding);
  text-align: left;
}

/*-----------------------------------------------------------------------------
| RenderedHTML
|----------------------------------------------------------------------------*/

.jp-RenderedHTMLCommon {
  color: var(--jp-content-font-color1);
  font-family: var(--jp-content-font-family);
  font-size: var(--jp-content-font-size1);
  line-height: var(--jp-content-line-height);

  /* Give a bit more R padding on Markdown text to keep line lengths reasonable */
  padding-right: 20px;
}

.jp-RenderedHTMLCommon em {
  font-style: italic;
}

.jp-RenderedHTMLCommon strong {
  font-weight: bold;
}

.jp-RenderedHTMLCommon u {
  text-decoration: underline;
}

.jp-RenderedHTMLCommon a:link {
  text-decoration: none;
  color: var(--jp-content-link-color);
}

.jp-RenderedHTMLCommon a:hover {
  text-decoration: underline;
  color: var(--jp-content-link-color);
}

.jp-RenderedHTMLCommon a:visited {
  text-decoration: none;
  color: var(--jp-content-link-color);
}

/* Headings */

.jp-RenderedHTMLCommon h1,
.jp-RenderedHTMLCommon h2,
.jp-RenderedHTMLCommon h3,
.jp-RenderedHTMLCommon h4,
.jp-RenderedHTMLCommon h5,
.jp-RenderedHTMLCommon h6 {
  line-height: var(--jp-content-heading-line-height);
  font-weight: var(--jp-content-heading-font-weight);
  font-style: normal;
  margin: var(--jp-content-heading-margin-top) 0
    var(--jp-content-heading-margin-bottom) 0;
}

.jp-RenderedHTMLCommon h1:first-child,
.jp-RenderedHTMLCommon h2:first-child,
.jp-RenderedHTMLCommon h3:first-child,
.jp-RenderedHTMLCommon h4:first-child,
.jp-RenderedHTMLCommon h5:first-child,
.jp-RenderedHTMLCommon h6:first-child {
  margin-top: calc(0.5 * var(--jp-content-heading-margin-top));
}

.jp-RenderedHTMLCommon h1:last-child,
.jp-RenderedHTMLCommon h2:last-child,
.jp-RenderedHTMLCommon h3:last-child,
.jp-RenderedHTMLCommon h4:last-child,
.jp-RenderedHTMLCommon h5:last-child,
.jp-RenderedHTMLCommon h6:last-child {
  margin-bottom: calc(0.5 * var(--jp-content-heading-margin-bottom));
}

.jp-RenderedHTMLCommon h1 {
  font-size: var(--jp-content-font-size5);
}

.jp-RenderedHTMLCommon h2 {
  font-size: var(--jp-content-font-size4);
}

.jp-RenderedHTMLCommon h3 {
  font-size: var(--jp-content-font-size3);
}

.jp-RenderedHTMLCommon h4 {
  font-size: var(--jp-content-font-size2);
}

.jp-RenderedHTMLCommon h5 {
  font-size: var(--jp-content-font-size1);
}

.jp-RenderedHTMLCommon h6 {
  font-size: var(--jp-content-font-size0);
}

/* Lists */

/* stylelint-disable selector-max-type, selector-max-compound-selectors */

.jp-RenderedHTMLCommon ul:not(.list-inline),
.jp-RenderedHTMLCommon ol:not(.list-inline) {
  padding-left: 2em;
}

.jp-RenderedHTMLCommon ul {
  list-style: disc;
}

.jp-RenderedHTMLCommon ul ul {
  list-style: square;
}

.jp-RenderedHTMLCommon ul ul ul {
  list-style: circle;
}

.jp-RenderedHTMLCommon ol {
  list-style: decimal;
}

.jp-RenderedHTMLCommon ol ol {
  list-style: upper-alpha;
}

.jp-RenderedHTMLCommon ol ol ol {
  list-style: lower-alpha;
}

.jp-RenderedHTMLCommon ol ol ol ol {
  list-style: lower-roman;
}

.jp-RenderedHTMLCommon ol ol ol ol ol {
  list-style: decimal;
}

.jp-RenderedHTMLCommon ol,
.jp-RenderedHTMLCommon ul {
  margin-bottom: 1em;
}

.jp-RenderedHTMLCommon ul ul,
.jp-RenderedHTMLCommon ul ol,
.jp-RenderedHTMLCommon ol ul,
.jp-RenderedHTMLCommon ol ol {
  margin-bottom: 0;
}

/* stylelint-enable selector-max-type, selector-max-compound-selectors */

.jp-RenderedHTMLCommon hr {
  color: var(--jp-border-color2);
  background-color: var(--jp-border-color1);
  margin-top: 1em;
  margin-bottom: 1em;
}

.jp-RenderedHTMLCommon > pre {
  margin: 1.5em 2em;
}

.jp-RenderedHTMLCommon pre,
.jp-RenderedHTMLCommon code {
  border: 0;
  background-color: var(--jp-layout-color0);
  color: var(--jp-content-font-color1);
  font-family: var(--jp-code-font-family);
  font-size: inherit;
  line-height: var(--jp-code-line-height);
  padding: 0;
  white-space: pre-wrap;
}

.jp-RenderedHTMLCommon :not(pre) > code {
  background-color: var(--jp-layout-color2);
  padding: 1px 5px;
}

/* Tables */

.jp-RenderedHTMLCommon table {
  border-collapse: collapse;
  border-spacing: 0;
  border: none;
  color: var(--jp-ui-font-color1);
  font-size: var(--jp-ui-font-size1);
  table-layout: fixed;
  margin-left: auto;
  margin-bottom: 1em;
  margin-right: auto;
}

.jp-RenderedHTMLCommon thead {
  border-bottom: var(--jp-border-width) solid var(--jp-border-color1);
  vertical-align: bottom;
}

.jp-RenderedHTMLCommon td,
.jp-RenderedHTMLCommon th,
.jp-RenderedHTMLCommon tr {
  vertical-align: middle;
  padding: 0.5em;
  line-height: normal;
  white-space: normal;
  max-width: none;
  border: none;
}

.jp-RenderedMarkdown.jp-RenderedHTMLCommon td,
.jp-RenderedMarkdown.jp-RenderedHTMLCommon th {
  max-width: none;
}

:not(.jp-RenderedMarkdown).jp-RenderedHTMLCommon td,
:not(.jp-RenderedMarkdown).jp-RenderedHTMLCommon th,
:not(.jp-RenderedMarkdown).jp-RenderedHTMLCommon tr {
  text-align: right;
}

.jp-RenderedHTMLCommon th {
  font-weight: bold;
}

.jp-RenderedHTMLCommon tbody tr:nth-child(odd) {
  background: var(--jp-layout-color0);
}

.jp-RenderedHTMLCommon tbody tr:nth-child(even) {
  background: var(--jp-rendermime-table-row-background);
}

.jp-RenderedHTMLCommon tbody tr:hover {
  background: var(--jp-rendermime-table-row-hover-background);
}

.jp-RenderedHTMLCommon p {
  text-align: left;
  margin: 0;
  margin-bottom: 1em;
}

.jp-RenderedHTMLCommon img {
  -moz-force-broken-image-icon: 1;
}

/* Restrict to direct children as other images could be nested in other content. */
.jp-RenderedHTMLCommon > img {
  display: block;
  margin-left: 0;
  margin-right: 0;
  margin-bottom: 1em;
}

/* Change color behind transparent images if they need it... */
[data-jp-theme-light='false'] .jp-RenderedImage img.jp-needs-light-background {
  background-color: var(--jp-inverse-layout-color1);
}

[data-jp-theme-light='true'] .jp-RenderedImage img.jp-needs-dark-background {
  background-color: var(--jp-inverse-layout-color1);
}

.jp-RenderedHTMLCommon img,
.jp-RenderedImage img,
.jp-RenderedHTMLCommon svg,
.jp-RenderedSVG svg {
  max-width: 100%;
  height: auto;
}

.jp-RenderedHTMLCommon img.jp-mod-unconfined,
.jp-RenderedImage img.jp-mod-unconfined,
.jp-RenderedHTMLCommon svg.jp-mod-unconfined,
.jp-RenderedSVG svg.jp-mod-unconfined {
  max-width: none;
}

.jp-RenderedHTMLCommon .alert {
  padding: var(--jp-notebook-padding);
  border: var(--jp-border-width) solid transparent;
  border-radius: var(--jp-border-radius);
  margin-bottom: 1em;
}

.jp-RenderedHTMLCommon .alert-info {
  color: var(--jp-info-color0);
  background-color: var(--jp-info-color3);
  border-color: var(--jp-info-color2);
}

.jp-RenderedHTMLCommon .alert-info hr {
  border-color: var(--jp-info-color3);
}

.jp-RenderedHTMLCommon .alert-info > p:last-child,
.jp-RenderedHTMLCommon .alert-info > ul:last-child {
  margin-bottom: 0;
}

.jp-RenderedHTMLCommon .alert-warning {
  color: var(--jp-warn-color0);
  background-color: var(--jp-warn-color3);
  border-color: var(--jp-warn-color2);
}

.jp-RenderedHTMLCommon .alert-warning hr {
  border-color: var(--jp-warn-color3);
}

.jp-RenderedHTMLCommon .alert-warning > p:last-child,
.jp-RenderedHTMLCommon .alert-warning > ul:last-child {
  margin-bottom: 0;
}

.jp-RenderedHTMLCommon .alert-success {
  color: var(--jp-success-color0);
  background-color: var(--jp-success-color3);
  border-color: var(--jp-success-color2);
}

.jp-RenderedHTMLCommon .alert-success hr {
  border-color: var(--jp-success-color3);
}

.jp-RenderedHTMLCommon .alert-success > p:last-child,
.jp-RenderedHTMLCommon .alert-success > ul:last-child {
  margin-bottom: 0;
}

.jp-RenderedHTMLCommon .alert-danger {
  color: var(--jp-error-color0);
  background-color: var(--jp-error-color3);
  border-color: var(--jp-error-color2);
}

.jp-RenderedHTMLCommon .alert-danger hr {
  border-color: var(--jp-error-color3);
}

.jp-RenderedHTMLCommon .alert-danger > p:last-child,
.jp-RenderedHTMLCommon .alert-danger > ul:last-child {
  margin-bottom: 0;
}

.jp-RenderedHTMLCommon blockquote {
  margin: 1em 2em;
  padding: 0 1em;
  border-left: 5px solid var(--jp-border-color2);
}

a.jp-InternalAnchorLink {
  visibility: hidden;
  margin-left: 8px;
  color: var(--md-blue-800);
}

h1:hover .jp-InternalAnchorLink,
h2:hover .jp-InternalAnchorLink,
h3:hover .jp-InternalAnchorLink,
h4:hover .jp-InternalAnchorLink,
h5:hover .jp-InternalAnchorLink,
h6:hover .jp-InternalAnchorLink {
  visibility: visible;
}

.jp-RenderedHTMLCommon kbd {
  background-color: var(--jp-rendermime-table-row-background);
  border: 1px solid var(--jp-border-color0);
  border-bottom-color: var(--jp-border-color2);
  border-radius: 3px;
  box-shadow: inset 0 -1px 0 rgba(0, 0, 0, 0.25);
  display: inline-block;
  font-size: var(--jp-ui-font-size0);
  line-height: 1em;
  padding: 0.2em 0.5em;
}

/* Most direct children of .jp-RenderedHTMLCommon have a margin-bottom of 1.0.
 * At the bottom of cells this is a bit too much as there is also spacing
 * between cells. Going all the way to 0 gets too tight between markdown and
 * code cells.
 */
.jp-RenderedHTMLCommon > *:last-child {
  margin-bottom: 0.5em;
}

/*
 * Copyright (c) Jupyter Development Team.
 * Distributed under the terms of the Modified BSD License.
 */

/*-----------------------------------------------------------------------------
| Copyright (c) Jupyter Development Team.
| Copyright (c) 2014-2017, PhosphorJS Contributors
|
| Distributed under the terms of the BSD 3-Clause License.
|
| The full license is in the file LICENSE, distributed with this software.
|----------------------------------------------------------------------------*/

.lm-cursor-backdrop {
  position: fixed;
  width: 200px;
  height: 200px;
  margin-top: -100px;
  margin-left: -100px;
  will-change: transform;
  z-index: 100;
}

.lm-mod-drag-image {
  will-change: transform;
}

/*
 * Copyright (c) Jupyter Development Team.
 * Distributed under the terms of the Modified BSD License.
 */

.jp-lineFormSearch {
  padding: 4px 12px;
  background-color: var(--jp-layout-color2);
  box-shadow: var(--jp-toolbar-box-shadow);
  z-index: 2;
  font-size: var(--jp-ui-font-size1);
}

.jp-lineFormCaption {
  font-size: var(--jp-ui-font-size0);
  line-height: var(--jp-ui-font-size1);
  margin-top: 4px;
  color: var(--jp-ui-font-color0);
}

.jp-baseLineForm {
  border: none;
  border-radius: 0;
  position: absolute;
  background-size: 16px;
  background-repeat: no-repeat;
  background-position: center;
  outline: none;
}

.jp-lineFormButtonContainer {
  top: 4px;
  right: 8px;
  height: 24px;
  padding: 0 12px;
  width: 12px;
}

.jp-lineFormButtonIcon {
  top: 0;
  right: 0;
  background-color: var(--jp-brand-color1);
  height: 100%;
  width: 100%;
  box-sizing: border-box;
  padding: 4px 6px;
}

.jp-lineFormButton {
  top: 0;
  right: 0;
  background-color: transparent;
  height: 100%;
  width: 100%;
  box-sizing: border-box;
}

.jp-lineFormWrapper {
  overflow: hidden;
  padding: 0 8px;
  border: 1px solid var(--jp-border-color0);
  background-color: var(--jp-input-active-background);
  height: 22px;
}

.jp-lineFormWrapperFocusWithin {
  border: var(--jp-border-width) solid var(--md-blue-500);
  box-shadow: inset 0 0 4px var(--md-blue-300);
}

.jp-lineFormInput {
  background: transparent;
  width: 200px;
  height: 100%;
  border: none;
  outline: none;
  color: var(--jp-ui-font-color0);
  line-height: 28px;
}

/*-----------------------------------------------------------------------------
| Copyright (c) 2014-2016, Jupyter Development Team.
|
| Distributed under the terms of the Modified BSD License.
|----------------------------------------------------------------------------*/

.jp-JSONEditor {
  display: flex;
  flex-direction: column;
  width: 100%;
}

.jp-JSONEditor-host {
  flex: 1 1 auto;
  border: var(--jp-border-width) solid var(--jp-input-border-color);
  border-radius: 0;
  background: var(--jp-layout-color0);
  min-height: 50px;
  padding: 1px;
}

.jp-JSONEditor.jp-mod-error .jp-JSONEditor-host {
  border-color: red;
  outline-color: red;
}

.jp-JSONEditor-header {
  display: flex;
  flex: 1 0 auto;
  padding: 0 0 0 12px;
}

.jp-JSONEditor-header label {
  flex: 0 0 auto;
}

.jp-JSONEditor-commitButton {
  height: 16px;
  width: 16px;
  background-size: 18px;
  background-repeat: no-repeat;
  background-position: center;
}

.jp-JSONEditor-host.jp-mod-focused {
  background-color: var(--jp-input-active-background);
  border: 1px solid var(--jp-input-active-border-color);
  box-shadow: var(--jp-input-box-shadow);
}

.jp-Editor.jp-mod-dropTarget {
  border: var(--jp-border-width) solid var(--jp-input-active-border-color);
  box-shadow: var(--jp-input-box-shadow);
}

/*-----------------------------------------------------------------------------
| Copyright (c) Jupyter Development Team.
| Distributed under the terms of the Modified BSD License.
|----------------------------------------------------------------------------*/
.jp-DocumentSearch-input {
  border: none;
  outline: none;
  color: var(--jp-ui-font-color0);
  font-size: var(--jp-ui-font-size1);
  background-color: var(--jp-layout-color0);
  font-family: var(--jp-ui-font-family);
  padding: 2px 1px;
  resize: none;
}

.jp-DocumentSearch-overlay {
  position: absolute;
  background-color: var(--jp-toolbar-background);
  border-bottom: var(--jp-border-width) solid var(--jp-toolbar-border-color);
  border-left: var(--jp-border-width) solid var(--jp-toolbar-border-color);
  top: 0;
  right: 0;
  z-index: 7;
  min-width: 405px;
  padding: 2px;
  font-size: var(--jp-ui-font-size1);

  --jp-private-document-search-button-height: 20px;
}

.jp-DocumentSearch-overlay button {
  background-color: var(--jp-toolbar-background);
  outline: 0;
}

.jp-DocumentSearch-overlay button:hover {
  background-color: var(--jp-layout-color2);
}

.jp-DocumentSearch-overlay button:active {
  background-color: var(--jp-layout-color3);
}

.jp-DocumentSearch-overlay-row {
  display: flex;
  align-items: center;
  margin-bottom: 2px;
}

.jp-DocumentSearch-button-content {
  display: inline-block;
  cursor: pointer;
  box-sizing: border-box;
  width: 100%;
  height: 100%;
}

.jp-DocumentSearch-button-content svg {
  width: 100%;
  height: 100%;
}

.jp-DocumentSearch-input-wrapper {
  border: var(--jp-border-width) solid var(--jp-border-color0);
  display: flex;
  background-color: var(--jp-layout-color0);
  margin: 2px;
}

.jp-DocumentSearch-input-wrapper:focus-within {
  border-color: var(--jp-cell-editor-active-border-color);
}

.jp-DocumentSearch-toggle-wrapper,
.jp-DocumentSearch-button-wrapper {
  all: initial;
  overflow: hidden;
  display: inline-block;
  border: none;
  box-sizing: border-box;
}

.jp-DocumentSearch-toggle-wrapper {
  width: 14px;
  height: 14px;
}

.jp-DocumentSearch-button-wrapper {
  width: var(--jp-private-document-search-button-height);
  height: var(--jp-private-document-search-button-height);
}

.jp-DocumentSearch-toggle-wrapper:focus,
.jp-DocumentSearch-button-wrapper:focus {
  outline: var(--jp-border-width) solid
    var(--jp-cell-editor-active-border-color);
  outline-offset: -1px;
}

.jp-DocumentSearch-toggle-wrapper,
.jp-DocumentSearch-button-wrapper,
.jp-DocumentSearch-button-content:focus {
  outline: none;
}

.jp-DocumentSearch-toggle-placeholder {
  width: 5px;
}

.jp-DocumentSearch-input-button::before {
  display: block;
  padding-top: 100%;
}

.jp-DocumentSearch-input-button-off {
  opacity: var(--jp-search-toggle-off-opacity);
}

.jp-DocumentSearch-input-button-off:hover {
  opacity: var(--jp-search-toggle-hover-opacity);
}

.jp-DocumentSearch-input-button-on {
  opacity: var(--jp-search-toggle-on-opacity);
}

.jp-DocumentSearch-index-counter {
  padding-left: 10px;
  padding-right: 10px;
  user-select: none;
  min-width: 35px;
  display: inline-block;
}

.jp-DocumentSearch-up-down-wrapper {
  display: inline-block;
  padding-right: 2px;
  margin-left: auto;
  white-space: nowrap;
}

.jp-DocumentSearch-spacer {
  margin-left: auto;
}

.jp-DocumentSearch-up-down-wrapper button {
  outline: 0;
  border: none;
  width: var(--jp-private-document-search-button-height);
  height: var(--jp-private-document-search-button-height);
  vertical-align: middle;
  margin: 1px 5px 2px;
}

.jp-DocumentSearch-up-down-button:hover {
  background-color: var(--jp-layout-color2);
}

.jp-DocumentSearch-up-down-button:active {
  background-color: var(--jp-layout-color3);
}

.jp-DocumentSearch-filter-button {
  border-radius: var(--jp-border-radius);
}

.jp-DocumentSearch-filter-button:hover {
  background-color: var(--jp-layout-color2);
}

.jp-DocumentSearch-filter-button-enabled {
  background-color: var(--jp-layout-color2);
}

.jp-DocumentSearch-filter-button-enabled:hover {
  background-color: var(--jp-layout-color3);
}

.jp-DocumentSearch-search-options {
  padding: 0 8px;
  margin-left: 3px;
  width: 100%;
  display: grid;
  justify-content: start;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  justify-items: stretch;
}

.jp-DocumentSearch-search-filter-disabled {
  color: var(--jp-ui-font-color2);
}

.jp-DocumentSearch-search-filter {
  display: flex;
  align-items: center;
  user-select: none;
}

.jp-DocumentSearch-regex-error {
  color: var(--jp-error-color0);
}

.jp-DocumentSearch-replace-button-wrapper {
  overflow: hidden;
  display: inline-block;
  box-sizing: border-box;
  border: var(--jp-border-width) solid var(--jp-border-color0);
  margin: auto 2px;
  padding: 1px 4px;
  height: calc(var(--jp-private-document-search-button-height) + 2px);
}

.jp-DocumentSearch-replace-button-wrapper:focus {
  border: var(--jp-border-width) solid var(--jp-cell-editor-active-border-color);
}

.jp-DocumentSearch-replace-button {
  display: inline-block;
  text-align: center;
  cursor: pointer;
  box-sizing: border-box;
  color: var(--jp-ui-font-color1);

  /* height - 2 * (padding of wrapper) */
  line-height: calc(var(--jp-private-document-search-button-height) - 2px);
  width: 100%;
  height: 100%;
}

.jp-DocumentSearch-replace-button:focus {
  outline: none;
}

.jp-DocumentSearch-replace-wrapper-class {
  margin-left: 14px;
  display: flex;
}

.jp-DocumentSearch-replace-toggle {
  border: none;
  background-color: var(--jp-toolbar-background);
  border-radius: var(--jp-border-radius);
}

.jp-DocumentSearch-replace-toggle:hover {
  background-color: var(--jp-layout-color2);
}

/*-----------------------------------------------------------------------------
| Copyright (c) Jupyter Development Team.
| Distributed under the terms of the Modified BSD License.
|----------------------------------------------------------------------------*/

.cm-editor {
  line-height: var(--jp-code-line-height);
  font-size: var(--jp-code-font-size);
  font-family: var(--jp-code-font-family);
  border: 0;
  border-radius: 0;
  height: auto;

  /* Changed to auto to autogrow */
}

.cm-editor pre {
  padding: 0 var(--jp-code-padding);
}

.jp-CodeMirrorEditor[data-type='inline'] .cm-dialog {
  background-color: var(--jp-layout-color0);
  color: var(--jp-content-font-color1);
}

.jp-CodeMirrorEditor {
  cursor: text;
}

/* When zoomed out 67% and 33% on a screen of 1440 width x 900 height */
@media screen and (min-width: 2138px) and (max-width: 4319px) {
  .jp-CodeMirrorEditor[data-type='inline'] .cm-cursor {
    border-left: var(--jp-code-cursor-width1) solid
      var(--jp-editor-cursor-color);
  }
}

/* When zoomed out less than 33% */
@media screen and (min-width: 4320px) {
  .jp-CodeMirrorEditor[data-type='inline'] .cm-cursor {
    border-left: var(--jp-code-cursor-width2) solid
      var(--jp-editor-cursor-color);
  }
}

.cm-editor.jp-mod-readOnly .cm-cursor {
  display: none;
}

.jp-CollaboratorCursor {
  border-left: 5px solid transparent;
  border-right: 5px solid transparent;
  border-top: none;
  border-bottom: 3px solid;
  background-clip: content-box;
  margin-left: -5px;
  margin-right: -5px;
}

.cm-searching,
.cm-searching span {
  /* `.cm-searching span`: we need to override syntax highlighting */
  background-color: var(--jp-search-unselected-match-background-color);
  color: var(--jp-search-unselected-match-color);
}

.cm-searching::selection,
.cm-searching span::selection {
  background-color: var(--jp-search-unselected-match-background-color);
  color: var(--jp-search-unselected-match-color);
}

.jp-current-match > .cm-searching,
.jp-current-match > .cm-searching span,
.cm-searching > .jp-current-match,
.cm-searching > .jp-current-match span {
  background-color: var(--jp-search-selected-match-background-color);
  color: var(--jp-search-selected-match-color);
}

.jp-current-match > .cm-searching::selection,
.cm-searching > .jp-current-match::selection,
.jp-current-match > .cm-searching span::selection {
  background-color: var(--jp-search-selected-match-background-color);
  color: var(--jp-search-selected-match-color);
}

.cm-trailingspace {
  background-image: url();
  background-position: center left;
  background-repeat: repeat-x;
}

.jp-CollaboratorCursor-hover {
  position: absolute;
  z-index: 1;
  transform: translateX(-50%);
  color: white;
  border-radius: 3px;
  padding-left: 4px;
  padding-right: 4px;
  padding-top: 1px;
  padding-bottom: 1px;
  text-align: center;
  font-size: var(--jp-ui-font-size1);
  white-space: nowrap;
}

.jp-CodeMirror-ruler {
  border-left: 1px dashed var(--jp-border-color2);
}

/* Styles for shared cursors (remote cursor locations and selected ranges) */
.jp-CodeMirrorEditor .cm-ySelectionCaret {
  position: relative;
  border-left: 1px solid black;
  margin-left: -1px;
  margin-right: -1px;
  box-sizing: border-box;
}

.jp-CodeMirrorEditor .cm-ySelectionCaret > .cm-ySelectionInfo {
  white-space: nowrap;
  position: absolute;
  top: -1.15em;
  padding-bottom: 0.05em;
  left: -1px;
  font-size: 0.95em;
  font-family: var(--jp-ui-font-family);
  font-weight: bold;
  line-height: normal;
  user-select: none;
  color: white;
  padding-left: 2px;
  padding-right: 2px;
  z-index: 101;
  transition: opacity 0.3s ease-in-out;
}

.jp-CodeMirrorEditor .cm-ySelectionInfo {
  transition-delay: 0.7s;
  opacity: 0;
}

.jp-CodeMirrorEditor .cm-ySelectionCaret:hover > .cm-ySelectionInfo {
  opacity: 1;
  transition-delay: 0s;
}

/*-----------------------------------------------------------------------------
| Copyright (c) Jupyter Development Team.
| Distributed under the terms of the Modified BSD License.
|----------------------------------------------------------------------------*/

.jp-MimeDocument {
  outline: none;
}

/*-----------------------------------------------------------------------------
| Copyright (c) Jupyter Development Team.
| Distributed under the terms of the Modified BSD License.
|----------------------------------------------------------------------------*/

/*-----------------------------------------------------------------------------
| Variables
|----------------------------------------------------------------------------*/

:root {
  --jp-private-filebrowser-button-height: 28px;
  --jp-private-filebrowser-button-width: 48px;
}

/*-----------------------------------------------------------------------------
| Copyright (c) Jupyter Development Team.
| Distributed under the terms of the Modified BSD License.
|----------------------------------------------------------------------------*/

.jp-FileBrowser .jp-SidePanel-content {
  display: flex;
  flex-direction: column;
}

.jp-FileBrowser-toolbar.jp-Toolbar {
  flex-wrap: wrap;
  row-gap: 12px;
  border-bottom: none;
  height: auto;
  margin: 8px 12px 0;
  box-shadow: none;
  padding: 0;
  justify-content: flex-start;
}

.jp-FileBrowser-Panel {
  flex: 1 1 auto;
  display: flex;
  flex-direction: column;
}

.jp-BreadCrumbs {
  flex: 0 0 auto;
  margin: 8px 12px;
}

.jp-BreadCrumbs-item {
  margin: 0 2px;
  padding: 0 2px;
  border-radius: var(--jp-border-radius);
  cursor: pointer;
}

.jp-BreadCrumbs-item:hover {
  background-color: var(--jp-layout-color2);
}

.jp-BreadCrumbs-item:first-child {
  margin-left: 0;
}

.jp-BreadCrumbs-item.jp-mod-dropTarget {
  background-color: var(--jp-brand-color2);
  opacity: 0.7;
}

/*-----------------------------------------------------------------------------
| Buttons
|----------------------------------------------------------------------------*/

.jp-FileBrowser-toolbar > .jp-Toolbar-item {
  flex: 0 0 auto;
  padding-left: 0;
  padding-right: 2px;
  align-items: center;
  height: unset;
}

.jp-FileBrowser-toolbar > .jp-Toolbar-item .jp-ToolbarButtonComponent {
  width: 40px;
}

/*-----------------------------------------------------------------------------
| Other styles
|----------------------------------------------------------------------------*/

.jp-FileDialog.jp-mod-conflict input {
  color: var(--jp-error-color1);
}

.jp-FileDialog .jp-new-name-title {
  margin-top: 12px;
}

.jp-LastModified-hidden {
  display: none;
}

.jp-FileSize-hidden {
  display: none;
}

.jp-FileBrowser .lm-AccordionPanel > h3:first-child {
  display: none;
}

/*-----------------------------------------------------------------------------
| DirListing
|----------------------------------------------------------------------------*/

.jp-DirListing {
  flex: 1 1 auto;
  display: flex;
  flex-direction: column;
  outline: 0;
}

.jp-DirListing-header {
  flex: 0 0 auto;
  display: flex;
  flex-direction: row;
  align-items: center;
  overflow: hidden;
  border-top: var(--jp-border-width) solid var(--jp-border-color2);
  border-bottom: var(--jp-border-width) solid var(--jp-border-color1);
  box-shadow: var(--jp-toolbar-box-shadow);
  z-index: 2;
}

.jp-DirListing-headerItem {
  padding: 4px 12px 2px;
  font-weight: 500;
}

.jp-DirListing-headerItem:hover {
  background: var(--jp-layout-color2);
}

.jp-DirListing-headerItem.jp-id-name {
  flex: 1 0 84px;
}

.jp-DirListing-headerItem.jp-id-modified {
  flex: 0 0 112px;
  border-left: var(--jp-border-width) solid var(--jp-border-color2);
  text-align: right;
}

.jp-DirListing-headerItem.jp-id-filesize {
  flex: 0 0 75px;
  border-left: var(--jp-border-width) solid var(--jp-border-color2);
  text-align: right;
}

.jp-id-narrow {
  display: none;
  flex: 0 0 5px;
  padding: 4px;
  border-left: var(--jp-border-width) solid var(--jp-border-color2);
  text-align: right;
  color: var(--jp-border-color2);
}

.jp-DirListing-narrow .jp-id-narrow {
  display: block;
}

.jp-DirListing-narrow .jp-id-modified,
.jp-DirListing-narrow .jp-DirListing-itemModified {
  display: none;
}

.jp-DirListing-headerItem.jp-mod-selected {
  font-weight: 600;
}

/* increase specificity to override bundled default */
.jp-DirListing-content {
  flex: 1 1 auto;
  margin: 0;
  padding: 0;
  list-style-type: none;
  overflow: auto;
  background-color: var(--jp-layout-color1);
}

.jp-DirListing-content mark {
  color: var(--jp-ui-font-color0);
  background-color: transparent;
  font-weight: bold;
}

.jp-DirListing-content .jp-DirListing-item.jp-mod-selected mark {
  color: var(--jp-ui-inverse-font-color0);
}

/* Style the directory listing content when a user drops a file to upload */
.jp-DirListing.jp-mod-native-drop .jp-DirListing-content {
  outline: 5px dashed rgba(128, 128, 128, 0.5);
  outline-offset: -10px;
  cursor: copy;
}

.jp-DirListing-item {
  display: flex;
  flex-direction: row;
  align-items: center;
  padding: 4px 12px;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}

.jp-DirListing-checkboxWrapper {
  /* Increases hit area of checkbox. */
  padding: 4px;
}

.jp-DirListing-header
  .jp-DirListing-checkboxWrapper
  + .jp-DirListing-headerItem {
  padding-left: 4px;
}

.jp-DirListing-content .jp-DirListing-checkboxWrapper {
  position: relative;
  left: -4px;
  margin: -4px 0 -4px -8px;
}

.jp-DirListing-checkboxWrapper.jp-mod-visible {
  visibility: visible;
}

/* For devices that support hovering, hide checkboxes until hovered, selected...
*/
@media (hover: hover) {
  .jp-DirListing-checkboxWrapper {
    visibility: hidden;
  }

  .jp-DirListing-item:hover .jp-DirListing-checkboxWrapper,
  .jp-DirListing-item.jp-mod-selected .jp-DirListing-checkboxWrapper {
    visibility: visible;
  }
}

.jp-DirListing-item[data-is-dot] {
  opacity: 75%;
}

.jp-DirListing-item.jp-mod-selected {
  color: var(--jp-ui-inverse-font-color1);
  background: var(--jp-brand-color1);
}

.jp-DirListing-item.jp-mod-dropTarget {
  background: var(--jp-brand-color3);
}

.jp-DirListing-item:hover:not(.jp-mod-selected) {
  background: var(--jp-layout-color2);
}

.jp-DirListing-itemIcon {
  flex: 0 0 20px;
  margin-right: 4px;
}

.jp-DirListing-itemText {
  flex: 1 0 64px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  user-select: none;
}

.jp-DirListing-itemText:focus {
  outline-width: 2px;
  outline-color: var(--jp-inverse-layout-color1);
  outline-style: solid;
  outline-offset: 1px;
}

.jp-DirListing-item.jp-mod-selected .jp-DirListing-itemText:focus {
  outline-color: var(--jp-layout-color1);
}

.jp-DirListing-itemModified {
  flex: 0 0 125px;
  text-align: right;
}

.jp-DirListing-itemFileSize {
  flex: 0 0 90px;
  text-align: right;
}

.jp-DirListing-editor {
  flex: 1 0 64px;
  outline: none;
  border: none;
  color: var(--jp-ui-font-color1);
  background-color: var(--jp-layout-color1);
}

.jp-DirListing-item.jp-mod-running .jp-DirListing-itemIcon::before {
  color: var(--jp-success-color1);
  content: '\25CF';
  font-size: 8px;
  position: absolute;
  left: -8px;
}

.jp-DirListing-item.jp-mod-running.jp-mod-selected
  .jp-DirListing-itemIcon::before {
  color: var(--jp-ui-inverse-font-color1);
}

.jp-DirListing-item.lm-mod-drag-image,
.jp-DirListing-item.jp-mod-selected.lm-mod-drag-image {
  font-size: var(--jp-ui-font-size1);
  padding-left: 4px;
  margin-left: 4px;
  width: 160px;
  background-color: var(--jp-ui-inverse-font-color2);
  box-shadow: var(--jp-elevation-z2);
  border-radius: 0;
  color: var(--jp-ui-font-color1);
  transform: translateX(-40%) translateY(-58%);
}

.jp-Document {
  min-width: 120px;
  min-height: 120px;
  outline: none;
}

/*-----------------------------------------------------------------------------
| Copyright (c) Jupyter Development Team.
| Distributed under the terms of the Modified BSD License.
|----------------------------------------------------------------------------*/

/*-----------------------------------------------------------------------------
| Main OutputArea
| OutputArea has a list of Outputs
|----------------------------------------------------------------------------*/

.jp-OutputArea {
  overflow-y: auto;
}

.jp-OutputArea-child {
  display: table;
  table-layout: fixed;
  width: 100%;
  overflow: hidden;
}

.jp-OutputPrompt {
  width: var(--jp-cell-prompt-width);
  color: var(--jp-cell-outprompt-font-color);
  font-family: var(--jp-cell-prompt-font-family);
  padding: var(--jp-code-padding);
  letter-spacing: var(--jp-cell-prompt-letter-spacing);
  line-height: var(--jp-code-line-height);
  font-size: var(--jp-code-font-size);
  border: var(--jp-border-width) solid transparent;
  opacity: var(--jp-cell-prompt-opacity);

  /* Right align prompt text, don't wrap to handle large prompt numbers */
  text-align: right;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;

  /* Disable text selection */
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}

.jp-OutputArea-prompt {
  display: table-cell;
  vertical-align: top;
}

.jp-OutputArea-output {
  display: table-cell;
  width: 100%;
  height: auto;
  overflow: auto;
  user-select: text;
  -moz-user-select: text;
  -webkit-user-select: text;
  -ms-user-select: text;
}

.jp-OutputArea .jp-RenderedText {
  padding-left: 1ch;
}

/**
 * Prompt overlay.
 */

.jp-OutputArea-promptOverlay {
  position: absolute;
  top: 0;
  width: var(--jp-cell-prompt-width);
  height: 100%;
  opacity: 0.5;
}

.jp-OutputArea-promptOverlay:hover {
  background: var(--jp-layout-color2);
  box-shadow: inset 0 0 1px var(--jp-inverse-layout-color0);
  cursor: zoom-out;
}

.jp-mod-outputsScrolled .jp-OutputArea-promptOverlay:hover {
  cursor: zoom-in;
}

/**
 * Isolated output.
 */
.jp-OutputArea-output.jp-mod-isolated {
  width: 100%;
  display: block;
}

/*
When drag events occur, `lm-mod-override-cursor` is added to the body.
Because iframes steal all cursor events, the following two rules are necessary
to suppress pointer events while resize drags are occurring. There may be a
better solution to this problem.
*/
body.lm-mod-override-cursor .jp-OutputArea-output.jp-mod-isolated {
  position: relative;
}

body.lm-mod-override-cursor .jp-OutputArea-output.jp-mod-isolated::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: transparent;
}

/* pre */

.jp-OutputArea-output pre {
  border: none;
  margin: 0;
  padding: 0;
  overflow-x: auto;
  overflow-y: auto;
  word-break: break-all;
  word-wrap: break-word;
  white-space: pre-wrap;
}

/* tables */

.jp-OutputArea-output.jp-RenderedHTMLCommon table {
  margin-left: 0;
  margin-right: 0;
}

/* description lists */

.jp-OutputArea-output dl,
.jp-OutputArea-output dt,
.jp-OutputArea-output dd {
  display: block;
}

.jp-OutputArea-output dl {
  width: 100%;
  overflow: hidden;
  padding: 0;
  margin: 0;
}

.jp-OutputArea-output dt {
  font-weight: bold;
  float: left;
  width: 20%;
  padding: 0;
  margin: 0;
}

.jp-OutputArea-output dd {
  float: left;
  width: 80%;
  padding: 0;
  margin: 0;
}

.jp-TrimmedOutputs pre {
  background: var(--jp-layout-color3);
  font-size: calc(var(--jp-code-font-size) * 1.4);
  text-align: center;
  text-transform: uppercase;
}

/* Hide the gutter in case of
 *  - nested output areas (e.g. in the case of output widgets)
 *  - mirrored output areas
 */
.jp-OutputArea .jp-OutputArea .jp-OutputArea-prompt {
  display: none;
}

/* Hide empty lines in the output area, for instance due to cleared widgets */
.jp-OutputArea-prompt:empty {
  padding: 0;
  border: 0;
}

/*-----------------------------------------------------------------------------
| executeResult is added to any Output-result for the display of the object
| returned by a cell
|----------------------------------------------------------------------------*/

.jp-OutputArea-output.jp-OutputArea-executeResult {
  margin-left: 0;
  width: 100%;
}

/* Text output with the Out[] prompt needs a top padding to match the
 * alignment of the Out[] prompt itself.
 */
.jp-OutputArea-executeResult .jp-RenderedText.jp-OutputArea-output {
  padding-top: var(--jp-code-padding);
  border-top: var(--jp-border-width) solid transparent;
}

/*-----------------------------------------------------------------------------
| The Stdin output
|----------------------------------------------------------------------------*/

.jp-Stdin-prompt {
  color: var(--jp-content-font-color0);
  padding-right: var(--jp-code-padding);
  vertical-align: baseline;
  flex: 0 0 auto;
}

.jp-Stdin-input {
  font-family: var(--jp-code-font-family);
  font-size: inherit;
  color: inherit;
  background-color: inherit;
  width: 42%;
  min-width: 200px;

  /* make sure input baseline aligns with prompt */
  vertical-align: baseline;

  /* padding + margin = 0.5em between prompt and cursor */
  padding: 0 0.25em;
  margin: 0 0.25em;
  flex: 0 0 70%;
}

.jp-Stdin-input::placeholder {
  opacity: 0;
}

.jp-Stdin-input:focus {
  box-shadow: none;
}

.jp-Stdin-input:focus::placeholder {
  opacity: 1;
}

/*-----------------------------------------------------------------------------
| Output Area View
|----------------------------------------------------------------------------*/

.jp-LinkedOutputView .jp-OutputArea {
  height: 100%;
  display: block;
}

.jp-LinkedOutputView .jp-OutputArea-output:only-child {
  height: 100%;
}

/*-----------------------------------------------------------------------------
| Printing
|----------------------------------------------------------------------------*/

@media print {
  .jp-OutputArea-child {
    break-inside: avoid-page;
  }
}

/*-----------------------------------------------------------------------------
| Mobile
|----------------------------------------------------------------------------*/
@media only screen and (max-width: 760px) {
  .jp-OutputPrompt {
    display: table-row;
    text-align: left;
  }

  .jp-OutputArea-child .jp-OutputArea-output {
    display: table-row;
    margin-left: var(--jp-notebook-padding);
  }
}

/* Trimmed outputs warning */
.jp-TrimmedOutputs > a {
  margin: 10px;
  text-decoration: none;
  cursor: pointer;
}

.jp-TrimmedOutputs > a:hover {
  text-decoration: none;
}

/*-----------------------------------------------------------------------------
| Copyright (c) Jupyter Development Team.
| Distributed under the terms of the Modified BSD License.
|----------------------------------------------------------------------------*/

/*-----------------------------------------------------------------------------
| Table of Contents
|----------------------------------------------------------------------------*/

:root {
  --jp-private-toc-active-width: 4px;
}

.jp-TableOfContents {
  display: flex;
  flex-direction: column;
  background: var(--jp-layout-color1);
  color: var(--jp-ui-font-color1);
  font-size: var(--jp-ui-font-size1);
  height: 100%;
}

.jp-TableOfContents-placeholder {
  text-align: center;
}

.jp-TableOfContents-placeholderContent {
  color: var(--jp-content-font-color2);
  padding: 8px;
}

.jp-TableOfContents-placeholderContent > h3 {
  margin-bottom: var(--jp-content-heading-margin-bottom);
}

.jp-TableOfContents .jp-SidePanel-content {
  overflow-y: auto;
}

.jp-TableOfContents-tree {
  margin: 4px;
}

.jp-TableOfContents ol {
  list-style-type: none;
}

/* stylelint-disable-next-line selector-max-type */
.jp-TableOfContents li > ol {
  /* Align left border with triangle icon center */
  padding-left: 11px;
}

.jp-TableOfContents-content {
  /* left margin for the active heading indicator */
  margin: 0 0 0 var(--jp-private-toc-active-width);
  padding: 0;
  background-color: var(--jp-layout-color1);
}

.jp-tocItem {
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}

.jp-tocItem-heading {
  display: flex;
  cursor: pointer;
}

.jp-tocItem-heading:hover {
  background-color: var(--jp-layout-color2);
}

.jp-tocItem-content {
  display: block;
  padding: 4px 0;
  white-space: nowrap;
  text-overflow: ellipsis;
  overflow-x: hidden;
}

.jp-tocItem-collapser {
  height: 20px;
  margin: 2px 2px 0;
  padding: 0;
  background: none;
  border: none;
  cursor: pointer;
}

.jp-tocItem-collapser:hover {
  background-color: var(--jp-layout-color3);
}

/* Active heading indicator */

.jp-tocItem-heading::before {
  content: ' ';
  background: transparent;
  width: var(--jp-private-toc-active-width);
  height: 24px;
  position: absolute;
  left: 0;
  border-radius: var(--jp-border-radius);
}

.jp-tocItem-heading.jp-tocItem-active::before {
  background-color: var(--jp-brand-color1);
}

.jp-tocItem-heading:hover.jp-tocItem-active::before {
  background: var(--jp-brand-color0);
  opacity: 1;
}

/*-----------------------------------------------------------------------------
| Copyright (c) Jupyter Development Team.
| Distributed under the terms of the Modified BSD License.
|----------------------------------------------------------------------------*/

.jp-Collapser {
  flex: 0 0 var(--jp-cell-collapser-width);
  padding: 0;
  margin: 0;
  border: none;
  outline: none;
  background: transparent;
  border-radius: var(--jp-border-radius);
  opacity: 1;
}

.jp-Collapser-child {
  display: block;
  width: 100%;
  box-sizing: border-box;

  /* height: 100% doesn't work because the height of its parent is computed from content */
  position: absolute;
  top: 0;
  bottom: 0;
}

/*-----------------------------------------------------------------------------
| Printing
|----------------------------------------------------------------------------*/

/*
Hiding collapsers in print mode.

Note: input and output wrappers have "display: block" propery in print mode.
*/

@media print {
  .jp-Collapser {
    display: none;
  }
}

/*-----------------------------------------------------------------------------
| Copyright (c) Jupyter Development Team.
| Distributed under the terms of the Modified BSD License.
|----------------------------------------------------------------------------*/

/*-----------------------------------------------------------------------------
| Header/Footer
|----------------------------------------------------------------------------*/

/* Hidden by zero height by default */
.jp-CellHeader,
.jp-CellFooter {
  height: 0;
  width: 100%;
  padding: 0;
  margin: 0;
  border: none;
  outline: none;
  background: transparent;
}

/*-----------------------------------------------------------------------------
| Copyright (c) Jupyter Development Team.
| Distributed under the terms of the Modified BSD License.
|----------------------------------------------------------------------------*/

/*-----------------------------------------------------------------------------
| Input
|----------------------------------------------------------------------------*/

/* All input areas */
.jp-InputArea {
  display: table;
  table-layout: fixed;
  width: 100%;
  overflow: hidden;
}

.jp-InputArea-editor {
  display: table-cell;
  overflow: hidden;
  vertical-align: top;

  /* This is the non-active, default styling */
  border: var(--jp-border-width) solid var(--jp-cell-editor-border-color);
  border-radius: 0;
  background: var(--jp-cell-editor-background);
}

.jp-InputPrompt {
  display: table-cell;
  vertical-align: top;
  width: var(--jp-cell-prompt-width);
  color: var(--jp-cell-inprompt-font-color);
  font-family: var(--jp-cell-prompt-font-family);
  padding: var(--jp-code-padding);
  letter-spacing: var(--jp-cell-prompt-letter-spacing);
  opacity: var(--jp-cell-prompt-opacity);
  line-height: var(--jp-code-line-height);
  font-size: var(--jp-code-font-size);
  border: var(--jp-border-width) solid transparent;

  /* Right align prompt text, don't wrap to handle large prompt numbers */
  text-align: right;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;

  /* Disable text selection */
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}

/*-----------------------------------------------------------------------------
| Mobile
|----------------------------------------------------------------------------*/
@media only screen and (max-width: 760px) {
  .jp-InputArea-editor {
    display: table-row;
    margin-left: var(--jp-notebook-padding);
  }

  .jp-InputPrompt {
    display: table-row;
    text-align: left;
  }
}

/*-----------------------------------------------------------------------------
| Copyright (c) Jupyter Development Team.
| Distributed under the terms of the Modified BSD License.
|----------------------------------------------------------------------------*/

/*-----------------------------------------------------------------------------
| Placeholder
|----------------------------------------------------------------------------*/

.jp-Placeholder {
  display: table;
  table-layout: fixed;
  width: 100%;
}

.jp-Placeholder-prompt {
  display: table-cell;
  box-sizing: border-box;
}

.jp-Placeholder-content {
  display: table-cell;
  padding: 4px 6px;
  border: 1px solid transparent;
  border-radius: 0;
  background: none;
  box-sizing: border-box;
  cursor: pointer;
}

.jp-Placeholder-contentContainer {
  display: flex;
}

.jp-Placeholder-content:hover,
.jp-InputPlaceholder > .jp-Placeholder-content:hover {
  border-color: var(--jp-layout-color3);
}

.jp-Placeholder-content .jp-MoreHorizIcon {
  width: 32px;
  height: 16px;
  border: 1px solid transparent;
  border-radius: var(--jp-border-radius);
}

.jp-Placeholder-content .jp-MoreHorizIcon:hover {
  border: 1px solid var(--jp-border-color1);
  box-shadow: 0 0 2px 0 rgba(0, 0, 0, 0.25);
  background-color: var(--jp-layout-color0);
}

.jp-PlaceholderText {
  white-space: nowrap;
  overflow-x: hidden;
  color: var(--jp-inverse-layout-color3);
  font-family: var(--jp-code-font-family);
}

.jp-InputPlaceholder > .jp-Placeholder-content {
  border-color: var(--jp-cell-editor-border-color);
  background: var(--jp-cell-editor-background);
}

/*-----------------------------------------------------------------------------
| Copyright (c) Jupyter Development Team.
| Distributed under the terms of the Modified BSD License.
|----------------------------------------------------------------------------*/

/*-----------------------------------------------------------------------------
| Private CSS variables
|----------------------------------------------------------------------------*/

:root {
  --jp-private-cell-scrolling-output-offset: 5px;
}

/*-----------------------------------------------------------------------------
| Cell
|----------------------------------------------------------------------------*/

.jp-Cell {
  padding: var(--jp-cell-padding);
  margin: 0;
  border: none;
  outline: none;
  background: transparent;
}

/*-----------------------------------------------------------------------------
| Common input/output
|----------------------------------------------------------------------------*/

.jp-Cell-inputWrapper,
.jp-Cell-outputWrapper {
  display: flex;
  flex-direction: row;
  padding: 0;
  margin: 0;

  /* Added to reveal the box-shadow on the input and output collapsers. */
  overflow: visible;
}

/* Only input/output areas inside cells */
.jp-Cell-inputArea,
.jp-Cell-outputArea {
  flex: 1 1 auto;
}

/*-----------------------------------------------------------------------------
| Collapser
|----------------------------------------------------------------------------*/

/* Make the output collapser disappear when there is not output, but do so
 * in a manner that leaves it in the layout and preserves its width.
 */
.jp-Cell.jp-mod-noOutputs .jp-Cell-outputCollapser {
  border: none !important;
  background: transparent !important;
}

.jp-Cell:not(.jp-mod-noOutputs) .jp-Cell-outputCollapser {
  min-height: var(--jp-cell-collapser-min-height);
}

/*-----------------------------------------------------------------------------
| Output
|----------------------------------------------------------------------------*/

/* Put a space between input and output when there IS output */
.jp-Cell:not(.jp-mod-noOutputs) .jp-Cell-outputWrapper {
  margin-top: 5px;
}

.jp-CodeCell.jp-mod-outputsScrolled .jp-Cell-outputArea {
  overflow-y: auto;
  max-height: 24em;
  margin-left: var(--jp-private-cell-scrolling-output-offset);
  resize: vertical;
}

.jp-CodeCell.jp-mod-outputsScrolled .jp-Cell-outputArea[style*='height'] {
  max-height: unset;
}

.jp-CodeCell.jp-mod-outputsScrolled .jp-Cell-outputArea::after {
  content: ' ';
  box-shadow: inset 0 0 6px 2px rgb(0 0 0 / 30%);
  width: 100%;
  height: 100%;
  position: sticky;
  bottom: 0;
  top: 0;
  margin-top: -50%;
  float: left;
  display: block;
  pointer-events: none;
}

.jp-CodeCell.jp-mod-outputsScrolled .jp-OutputArea-child {
  padding-top: 6px;
}

.jp-CodeCell.jp-mod-outputsScrolled .jp-OutputArea-prompt {
  width: calc(
    var(--jp-cell-prompt-width) - var(--jp-private-cell-scrolling-output-offset)
  );
}

.jp-CodeCell.jp-mod-outputsScrolled .jp-OutputArea-promptOverlay {
  left: calc(-1 * var(--jp-private-cell-scrolling-output-offset));
}

/*-----------------------------------------------------------------------------
| CodeCell
|----------------------------------------------------------------------------*/

/*-----------------------------------------------------------------------------
| MarkdownCell
|----------------------------------------------------------------------------*/

.jp-MarkdownOutput {
  display: table-cell;
  width: 100%;
  margin-top: 0;
  margin-bottom: 0;
  padding-left: var(--jp-code-padding);
}

.jp-MarkdownOutput.jp-RenderedHTMLCommon {
  overflow: auto;
}

/* collapseHeadingButton (show always if hiddenCellsButton is _not_ shown) */
.jp-collapseHeadingButton {
  display: flex;
  min-height: var(--jp-cell-collapser-min-height);
  font-size: var(--jp-code-font-size);
  position: absolute;
  background-color: transparent;
  background-size: 25px;
  background-repeat: no-repeat;
  background-position-x: center;
  background-position-y: top;
  background-image: var(--jp-icon-caret-down);
  right: 0;
  top: 0;
  bottom: 0;
}

.jp-collapseHeadingButton.jp-mod-collapsed {
  background-image: var(--jp-icon-caret-right);
}

/*
 set the container font size to match that of content
 so that the nested collapse buttons have the right size
*/
.jp-MarkdownCell .jp-InputPrompt {
  font-size: var(--jp-content-font-size1);
}

/*
  Align collapseHeadingButton with cell top header
  The font sizes are identical to the ones in packages/rendermime/style/base.css
*/
.jp-mod-rendered .jp-collapseHeadingButton[data-heading-level='1'] {
  font-size: var(--jp-content-font-size5);
  background-position-y: calc(0.3 * var(--jp-content-font-size5));
}

.jp-mod-rendered .jp-collapseHeadingButton[data-heading-level='2'] {
  font-size: var(--jp-content-font-size4);
  background-position-y: calc(0.3 * var(--jp-content-font-size4));
}

.jp-mod-rendered .jp-collapseHeadingButton[data-heading-level='3'] {
  font-size: var(--jp-content-font-size3);
  background-position-y: calc(0.3 * var(--jp-content-font-size3));
}

.jp-mod-rendered .jp-collapseHeadingButton[data-heading-level='4'] {
  font-size: var(--jp-content-font-size2);
  background-position-y: calc(0.3 * var(--jp-content-font-size2));
}

.jp-mod-rendered .jp-collapseHeadingButton[data-heading-level='5'] {
  font-size: var(--jp-content-font-size1);
  background-position-y: top;
}

.jp-mod-rendered .jp-collapseHeadingButton[data-heading-level='6'] {
  font-size: var(--jp-content-font-size0);
  background-position-y: top;
}

/* collapseHeadingButton (show only on (hover,active) if hiddenCellsButton is shown) */
.jp-Notebook.jp-mod-showHiddenCellsButton .jp-collapseHeadingButton {
  display: none;
}

.jp-Notebook.jp-mod-showHiddenCellsButton
  :is(.jp-MarkdownCell:hover, .jp-mod-active)
  .jp-collapseHeadingButton {
  display: flex;
}

/* showHiddenCellsButton (only show if jp-mod-showHiddenCellsButton is set, which
is a consequence of the showHiddenCellsButton option in Notebook Settings)*/
.jp-Notebook.jp-mod-showHiddenCellsButton .jp-showHiddenCellsButton {
  margin-left: calc(var(--jp-cell-prompt-width) + 2 * var(--jp-code-padding));
  margin-top: var(--jp-code-padding);
  border: 1px solid var(--jp-border-color2);
  background-color: var(--jp-border-color3) !important;
  color: var(--jp-content-font-color0) !important;
  display: flex;
}

.jp-Notebook.jp-mod-showHiddenCellsButton .jp-showHiddenCellsButton:hover {
  background-color: var(--jp-border-color2) !important;
}

.jp-showHiddenCellsButton {
  display: none;
}

/*-----------------------------------------------------------------------------
| Printing
|----------------------------------------------------------------------------*/

/*
Using block instead of flex to allow the use of the break-inside CSS property for
cell outputs.
*/

@media print {
  .jp-Cell-inputWrapper,
  .jp-Cell-outputWrapper {
    display: block;
  }
}

/*-----------------------------------------------------------------------------
| Copyright (c) Jupyter Development Team.
| Distributed under the terms of the Modified BSD License.
|----------------------------------------------------------------------------*/

/*-----------------------------------------------------------------------------
| Copyright (c) Jupyter Development Team.
| Distributed under the terms of the Modified BSD License.
|----------------------------------------------------------------------------*/

/*-----------------------------------------------------------------------------
| Variables
|----------------------------------------------------------------------------*/

:root {
  --jp-notebook-toolbar-padding: 2px 5px 2px 2px;
}

/*-----------------------------------------------------------------------------

/*-----------------------------------------------------------------------------
| Styles
|----------------------------------------------------------------------------*/

.jp-NotebookPanel-toolbar {
  padding: var(--jp-notebook-toolbar-padding);

  /* disable paint containment from lumino 2.0 default strict CSS containment */
  contain: style size !important;
}

.jp-Toolbar-item.jp-Notebook-toolbarCellType .jp-select-wrapper.jp-mod-focused {
  border: none;
  box-shadow: none;
}

.jp-Notebook-toolbarCellTypeDropdown select {
  height: 24px;
  font-size: var(--jp-ui-font-size1);
  line-height: 14px;
  border-radius: 0;
  display: block;
}

.jp-Notebook-toolbarCellTypeDropdown span {
  top: 5px !important;
}

.jp-Toolbar-responsive-popup {
  position: absolute;
  height: fit-content;
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  justify-content: flex-end;
  border-bottom: var(--jp-border-width) solid var(--jp-toolbar-border-color);
  box-shadow: var(--jp-toolbar-box-shadow);
  background: var(--jp-toolbar-background);
  min-height: var(--jp-toolbar-micro-height);
  padding: var(--jp-notebook-toolbar-padding);
  z-index: 1;
  right: 0;
  top: 0;
}

.jp-Toolbar > .jp-Toolbar-responsive-opener {
  margin-left: auto;
}

/*-----------------------------------------------------------------------------
| Copyright (c) Jupyter Development Team.
| Distributed under the terms of the Modified BSD License.
|----------------------------------------------------------------------------*/

/*-----------------------------------------------------------------------------
| Variables
|----------------------------------------------------------------------------*/

/*-----------------------------------------------------------------------------

/*-----------------------------------------------------------------------------
| Styles
|----------------------------------------------------------------------------*/

.jp-Notebook-ExecutionIndicator {
  position: relative;
  display: inline-block;
  height: 100%;
  z-index: 9997;
}

.jp-Notebook-ExecutionIndicator-tooltip {
  visibility: hidden;
  height: auto;
  width: max-content;
  width: -moz-max-content;
  background-color: var(--jp-layout-color2);
  color: var(--jp-ui-font-color1);
  text-align: justify;
  border-radius: 6px;
  padding: 0 5px;
  position: fixed;
  display: table;
}

.jp-Notebook-ExecutionIndicator-tooltip.up {
  transform: translateX(-50%) translateY(-100%) translateY(-32px);
}

.jp-Notebook-ExecutionIndicator-tooltip.down {
  transform: translateX(calc(-100% + 16px)) translateY(5px);
}

.jp-Notebook-ExecutionIndicator-tooltip.hidden {
  display: none;
}

.jp-Notebook-ExecutionIndicator:hover .jp-Notebook-ExecutionIndicator-tooltip {
  visibility: visible;
}

.jp-Notebook-ExecutionIndicator span {
  font-size: var(--jp-ui-font-size1);
  font-family: var(--jp-ui-font-family);
  color: var(--jp-ui-font-color1);
  line-height: 24px;
  display: block;
}

.jp-Notebook-ExecutionIndicator-progress-bar {
  display: flex;
  justify-content: center;
  height: 100%;
}

/*
 * Copyright (c) Jupyter Development Team.
 * Distributed under the terms of the Modified BSD License.
 */

/*
 * Execution indicator
 */
.jp-tocItem-content::after {
  content: '';

  /* Must be identical to form a circle */
  width: 12px;
  height: 12px;
  background: none;
  border: none;
  position: absolute;
  right: 0;
}

.jp-tocItem-content[data-running='0']::after {
  border-radius: 50%;
  border: var(--jp-border-width) solid var(--jp-inverse-layout-color3);
  background: none;
}

.jp-tocItem-content[data-running='1']::after {
  border-radius: 50%;
  border: var(--jp-border-width) solid var(--jp-inverse-layout-color3);
  background-color: var(--jp-inverse-layout-color3);
}

.jp-tocItem-content[data-running='0'],
.jp-tocItem-content[data-running='1'] {
  margin-right: 12px;
}

/*
 * Copyright (c) Jupyter Development Team.
 * Distributed under the terms of the Modified BSD License.
 */

.jp-Notebook-footer {
  height: 27px;
  margin-left: calc(
    var(--jp-cell-prompt-width) + var(--jp-cell-collapser-width) +
      var(--jp-cell-padding)
  );
  width: calc(
    100% -
      (
        var(--jp-cell-prompt-width) + var(--jp-cell-collapser-width) +
          var(--jp-cell-padding) + var(--jp-cell-padding)
      )
  );
  border: var(--jp-border-width) solid var(--jp-cell-editor-border-color);
  color: var(--jp-ui-font-color3);
  margin-top: 6px;
  background: none;
  cursor: pointer;
}

.jp-Notebook-footer:focus {
  border-color: var(--jp-cell-editor-active-border-color);
}

/* For devices that support hovering, hide footer until hover */
@media (hover: hover) {
  .jp-Notebook-footer {
    opacity: 0;
  }

  .jp-Notebook-footer:focus,
  .jp-Notebook-footer:hover {
    opacity: 1;
  }
}

/*-----------------------------------------------------------------------------
| Copyright (c) Jupyter Development Team.
| Distributed under the terms of the Modified BSD License.
|----------------------------------------------------------------------------*/

/*-----------------------------------------------------------------------------
| Imports
|----------------------------------------------------------------------------*/

/*-----------------------------------------------------------------------------
| CSS variables
|----------------------------------------------------------------------------*/

:root {
  --jp-side-by-side-output-size: 1fr;
  --jp-side-by-side-resized-cell: var(--jp-side-by-side-output-size);
  --jp-private-notebook-dragImage-width: 304px;
  --jp-private-notebook-dragImage-height: 36px;
  --jp-private-notebook-selected-color: var(--md-blue-400);
  --jp-private-notebook-active-color: var(--md-green-400);
}

/*-----------------------------------------------------------------------------
| Notebook
|----------------------------------------------------------------------------*/

/* stylelint-disable selector-max-class */

.jp-NotebookPanel {
  display: block;
  height: 100%;
}

.jp-NotebookPanel.jp-Document {
  min-width: 240px;
  min-height: 120px;
}

.jp-Notebook {
  padding: var(--jp-notebook-padding);
  outline: none;
  overflow: auto;
  background: var(--jp-layout-color0);
}

.jp-Notebook.jp-mod-scrollPastEnd::after {
  display: block;
  content: '';
  min-height: var(--jp-notebook-scroll-padding);
}

.jp-MainAreaWidget-ContainStrict .jp-Notebook * {
  contain: strict;
}

.jp-Notebook .jp-Cell {
  overflow: visible;
}

.jp-Notebook .jp-Cell .jp-InputPrompt {
  cursor: move;
}

/*-----------------------------------------------------------------------------
| Notebook state related styling
|
| The notebook and cells each have states, here are the possibilities:
|
| - Notebook
|   - Command
|   - Edit
| - Cell
|   - None
|   - Active (only one can be active)
|   - Selected (the cells actions are applied to)
|   - Multiselected (when multiple selected, the cursor)
|   - No outputs
|----------------------------------------------------------------------------*/

/* Command or edit modes */

.jp-Notebook .jp-Cell:not(.jp-mod-active) .jp-InputPrompt {
  opacity: var(--jp-cell-prompt-not-active-opacity);
  color: var(--jp-cell-prompt-not-active-font-color);
}

.jp-Notebook .jp-Cell:not(.jp-mod-active) .jp-OutputPrompt {
  opacity: var(--jp-cell-prompt-not-active-opacity);
  color: var(--jp-cell-prompt-not-active-font-color);
}

/* cell is active */
.jp-Notebook .jp-Cell.jp-mod-active .jp-Collapser {
  background: var(--jp-brand-color1);
}

/* cell is dirty */
.jp-Notebook .jp-Cell.jp-mod-dirty .jp-InputPrompt {
  color: var(--jp-warn-color1);
}

.jp-Notebook .jp-Cell.jp-mod-dirty .jp-InputPrompt::before {
  color: var(--jp-warn-color1);
  content: '•';
}

.jp-Notebook .jp-Cell.jp-mod-active.jp-mod-dirty .jp-Collapser {
  background: var(--jp-warn-color1);
}

/* collapser is hovered */
.jp-Notebook .jp-Cell .jp-Collapser:hover {
  box-shadow: var(--jp-elevation-z2);
  background: var(--jp-brand-color1);
  opacity: var(--jp-cell-collapser-not-active-hover-opacity);
}

/* cell is active and collapser is hovered */
.jp-Notebook .jp-Cell.jp-mod-active .jp-Collapser:hover {
  background: var(--jp-brand-color0);
  opacity: 1;
}

/* Command mode */

.jp-Notebook.jp-mod-commandMode .jp-Cell.jp-mod-selected {
  background: var(--jp-notebook-multiselected-color);
}

.jp-Notebook.jp-mod-commandMode
  .jp-Cell.jp-mod-active.jp-mod-selected:not(.jp-mod-multiSelected) {
  background: transparent;
}

/* Edit mode */

.jp-Notebook.jp-mod-editMode .jp-Cell.jp-mod-active .jp-InputArea-editor {
  border: var(--jp-border-width) solid var(--jp-cell-editor-active-border-color);
  box-shadow: var(--jp-input-box-shadow);
  background-color: var(--jp-cell-editor-active-background);
}

/*-----------------------------------------------------------------------------
| Notebook drag and drop
|----------------------------------------------------------------------------*/

.jp-Notebook-cell.jp-mod-dropSource {
  opacity: 0.5;
}

.jp-Notebook-cell.jp-mod-dropTarget,
.jp-Notebook.jp-mod-commandMode
  .jp-Notebook-cell.jp-mod-active.jp-mod-selected.jp-mod-dropTarget {
  border-top-color: var(--jp-private-notebook-selected-color);
  border-top-style: solid;
  border-top-width: 2px;
}

.jp-dragImage {
  display: block;
  flex-direction: row;
  width: var(--jp-private-notebook-dragImage-width);
  height: var(--jp-private-notebook-dragImage-height);
  border: var(--jp-border-width) solid var(--jp-cell-editor-border-color);
  background: var(--jp-cell-editor-background);
  overflow: visible;
}

.jp-dragImage-singlePrompt {
  box-shadow: 2px 2px 4px 0 rgba(0, 0, 0, 0.12);
}

.jp-dragImage .jp-dragImage-content {
  flex: 1 1 auto;
  z-index: 2;
  font-size: var(--jp-code-font-size);
  font-family: var(--jp-code-font-family);
  line-height: var(--jp-code-line-height);
  padding: var(--jp-code-padding);
  border: var(--jp-border-width) solid var(--jp-cell-editor-border-color);
  background: var(--jp-cell-editor-background-color);
  color: var(--jp-content-font-color3);
  text-align: left;
  margin: 4px 4px 4px 0;
}

.jp-dragImage .jp-dragImage-prompt {
  flex: 0 0 auto;
  min-width: 36px;
  color: var(--jp-cell-inprompt-font-color);
  padding: var(--jp-code-padding);
  padding-left: 12px;
  font-family: var(--jp-cell-prompt-font-family);
  letter-spacing: var(--jp-cell-prompt-letter-spacing);
  line-height: 1.9;
  font-size: var(--jp-code-font-size);
  border: var(--jp-border-width) solid transparent;
}

.jp-dragImage-multipleBack {
  z-index: -1;
  position: absolute;
  height: 32px;
  width: 300px;
  top: 8px;
  left: 8px;
  background: var(--jp-layout-color2);
  border: var(--jp-border-width) solid var(--jp-input-border-color);
  box-shadow: 2px 2px 4px 0 rgba(0, 0, 0, 0.12);
}

/*-----------------------------------------------------------------------------
| Cell toolbar
|----------------------------------------------------------------------------*/

.jp-NotebookTools {
  display: block;
  min-width: var(--jp-sidebar-min-width);
  color: var(--jp-ui-font-color1);
  background: var(--jp-layout-color1);

  /* This is needed so that all font sizing of children done in ems is
    * relative to this base size */
  font-size: var(--jp-ui-font-size1);
  overflow: auto;
}

.jp-ActiveCellTool {
  padding: 12px 0;
  display: flex;
}

.jp-ActiveCellTool-Content {
  flex: 1 1 auto;
}

.jp-ActiveCellTool .jp-ActiveCellTool-CellContent {
  background: var(--jp-cell-editor-background);
  border: var(--jp-border-width) solid var(--jp-cell-editor-border-color);
  border-radius: 0;
  min-height: 29px;
}

.jp-ActiveCellTool .jp-InputPrompt {
  min-width: calc(var(--jp-cell-prompt-width) * 0.75);
}

.jp-ActiveCellTool-CellContent > pre {
  padding: 5px 4px;
  margin: 0;
  white-space: normal;
}

.jp-MetadataEditorTool {
  flex-direction: column;
  padding: 12px 0;
}

.jp-RankedPanel > :not(:first-child) {
  margin-top: 12px;
}

.jp-KeySelector select.jp-mod-styled {
  font-size: var(--jp-ui-font-size1);
  color: var(--jp-ui-font-color0);
  border: var(--jp-border-width) solid var(--jp-border-color1);
}

.jp-KeySelector label,
.jp-MetadataEditorTool label,
.jp-NumberSetter label {
  line-height: 1.4;
}

.jp-NotebookTools .jp-select-wrapper {
  margin-top: 4px;
  margin-bottom: 0;
}

.jp-NumberSetter input {
  width: 100%;
  margin-top: 4px;
}

.jp-NotebookTools .jp-Collapse {
  margin-top: 16px;
}

/*-----------------------------------------------------------------------------
| Presentation Mode (.jp-mod-presentationMode)
|----------------------------------------------------------------------------*/

.jp-mod-presentationMode .jp-Notebook {
  --jp-content-font-size1: var(--jp-content-presentation-font-size1);
  --jp-code-font-size: var(--jp-code-presentation-font-size);
}

.jp-mod-presentationMode .jp-Notebook .jp-Cell .jp-InputPrompt,
.jp-mod-presentationMode .jp-Notebook .jp-Cell .jp-OutputPrompt {
  flex: 0 0 110px;
}

/*-----------------------------------------------------------------------------
| Side-by-side Mode (.jp-mod-sideBySide)
|----------------------------------------------------------------------------*/
.jp-mod-sideBySide.jp-Notebook .jp-Notebook-cell {
  margin-top: 3em;
  margin-bottom: 3em;
  margin-left: 5%;
  margin-right: 5%;
}

.jp-mod-sideBySide.jp-Notebook .jp-CodeCell {
  display: grid;
  grid-template-columns: minmax(0, 1fr) min-content minmax(
      0,
      var(--jp-side-by-side-output-size)
    );
  grid-template-rows: auto minmax(0, 1fr) auto;
  grid-template-areas:
    'header header header'
    'input handle output'
    'footer footer footer';
}

.jp-mod-sideBySide.jp-Notebook .jp-CodeCell.jp-mod-resizedCell {
  grid-template-columns: minmax(0, 1fr) min-content minmax(
      0,
      var(--jp-side-by-side-resized-cell)
    );
}

.jp-mod-sideBySide.jp-Notebook .jp-CodeCell .jp-CellHeader {
  grid-area: header;
}

.jp-mod-sideBySide.jp-Notebook .jp-CodeCell .jp-Cell-inputWrapper {
  grid-area: input;
}

.jp-mod-sideBySide.jp-Notebook .jp-CodeCell .jp-Cell-outputWrapper {
  /* overwrite the default margin (no vertical separation needed in side by side move */
  margin-top: 0;
  grid-area: output;
}

.jp-mod-sideBySide.jp-Notebook .jp-CodeCell .jp-CellFooter {
  grid-area: footer;
}

.jp-mod-sideBySide.jp-Notebook .jp-CodeCell .jp-CellResizeHandle {
  grid-area: handle;
  user-select: none;
  display: block;
  height: 100%;
  cursor: ew-resize;
  padding: 0 var(--jp-cell-padding);
}

.jp-mod-sideBySide.jp-Notebook .jp-CodeCell .jp-CellResizeHandle::after {
  content: '';
  display: block;
  background: var(--jp-border-color2);
  height: 100%;
  width: 5px;
}

.jp-mod-sideBySide.jp-Notebook
  .jp-CodeCell.jp-mod-resizedCell
  .jp-CellResizeHandle::after {
  background: var(--jp-border-color0);
}

.jp-CellResizeHandle {
  display: none;
}

/*-----------------------------------------------------------------------------
| Placeholder
|----------------------------------------------------------------------------*/

.jp-Cell-Placeholder {
  padding-left: 55px;
}

.jp-Cell-Placeholder-wrapper {
  background: #fff;
  border: 1px solid;
  border-color: #e5e6e9 #dfe0e4 #d0d1d5;
  border-radius: 4px;
  -webkit-border-radius: 4px;
  margin: 10px 15px;
}

.jp-Cell-Placeholder-wrapper-inner {
  padding: 15px;
  position: relative;
}

.jp-Cell-Placeholder-wrapper-body {
  background-repeat: repeat;
  background-size: 50% auto;
}

.jp-Cell-Placeholder-wrapper-body div {
  background: #f6f7f8;
  background-image: -webkit-linear-gradient(
    left,
    #f6f7f8 0%,
    #edeef1 20%,
    #f6f7f8 40%,
    #f6f7f8 100%
  );
  background-repeat: no-repeat;
  background-size: 800px 104px;
  height: 104px;
  position: absolute;
  right: 15px;
  left: 15px;
  top: 15px;
}

div.jp-Cell-Placeholder-h1 {
  top: 20px;
  height: 20px;
  left: 15px;
  width: 150px;
}

div.jp-Cell-Placeholder-h2 {
  left: 15px;
  top: 50px;
  height: 10px;
  width: 100px;
}

div.jp-Cell-Placeholder-content-1,
div.jp-Cell-Placeholder-content-2,
div.jp-Cell-Placeholder-content-3 {
  left: 15px;
  right: 15px;
  height: 10px;
}

div.jp-Cell-Placeholder-content-1 {
  top: 100px;
}

div.jp-Cell-Placeholder-content-2 {
  top: 120px;
}

div.jp-Cell-Placeholder-content-3 {
  top: 140px;
}

</style>
<style type="text/css">
/*-----------------------------------------------------------------------------
| Copyright (c) Jupyter Development Team.
| Distributed under the terms of the Modified BSD License.
|----------------------------------------------------------------------------*/

/*
The following CSS variables define the main, public API for styling JupyterLab.
These variables should be used by all plugins wherever possible. In other
words, plugins should not define custom colors, sizes, etc unless absolutely
necessary. This enables users to change the visual theme of JupyterLab
by changing these variables.

Many variables appear in an ordered sequence (0,1,2,3). These sequences
are designed to work well together, so for example, `--jp-border-color1` should
be used with `--jp-layout-color1`. The numbers have the following meanings:

* 0: super-primary, reserved for special emphasis
* 1: primary, most important under normal situations
* 2: secondary, next most important under normal situations
* 3: tertiary, next most important under normal situations

Throughout JupyterLab, we are mostly following principles from Google's
Material Design when selecting colors. We are not, however, following
all of MD as it is not optimized for dense, information rich UIs.
*/

:root {
  /* Elevation
   *
   * We style box-shadows using Material Design's idea of elevation. These particular numbers are taken from here:
   *
   * https://github.com/material-components/material-components-web
   * https://material-components-web.appspot.com/elevation.html
   */

  --jp-shadow-base-lightness: 0;
  --jp-shadow-umbra-color: rgba(
    var(--jp-shadow-base-lightness),
    var(--jp-shadow-base-lightness),
    var(--jp-shadow-base-lightness),
    0.2
  );
  --jp-shadow-penumbra-color: rgba(
    var(--jp-shadow-base-lightness),
    var(--jp-shadow-base-lightness),
    var(--jp-shadow-base-lightness),
    0.14
  );
  --jp-shadow-ambient-color: rgba(
    var(--jp-shadow-base-lightness),
    var(--jp-shadow-base-lightness),
    var(--jp-shadow-base-lightness),
    0.12
  );
  --jp-elevation-z0: none;
  --jp-elevation-z1: 0 2px 1px -1px var(--jp-shadow-umbra-color),
    0 1px 1px 0 var(--jp-shadow-penumbra-color),
    0 1px 3px 0 var(--jp-shadow-ambient-color);
  --jp-elevation-z2: 0 3px 1px -2px var(--jp-shadow-umbra-color),
    0 2px 2px 0 var(--jp-shadow-penumbra-color),
    0 1px 5px 0 var(--jp-shadow-ambient-color);
  --jp-elevation-z4: 0 2px 4px -1px var(--jp-shadow-umbra-color),
    0 4px 5px 0 var(--jp-shadow-penumbra-color),
    0 1px 10px 0 var(--jp-shadow-ambient-color);
  --jp-elevation-z6: 0 3px 5px -1px var(--jp-shadow-umbra-color),
    0 6px 10px 0 var(--jp-shadow-penumbra-color),
    0 1px 18px 0 var(--jp-shadow-ambient-color);
  --jp-elevation-z8: 0 5px 5px -3px var(--jp-shadow-umbra-color),
    0 8px 10px 1px var(--jp-shadow-penumbra-color),
    0 3px 14px 2px var(--jp-shadow-ambient-color);
  --jp-elevation-z12: 0 7px 8px -4px var(--jp-shadow-umbra-color),
    0 12px 17px 2px var(--jp-shadow-penumbra-color),
    0 5px 22px 4px var(--jp-shadow-ambient-color);
  --jp-elevation-z16: 0 8px 10px -5px var(--jp-shadow-umbra-color),
    0 16px 24px 2px var(--jp-shadow-penumbra-color),
    0 6px 30px 5px var(--jp-shadow-ambient-color);
  --jp-elevation-z20: 0 10px 13px -6px var(--jp-shadow-umbra-color),
    0 20px 31px 3px var(--jp-shadow-penumbra-color),
    0 8px 38px 7px var(--jp-shadow-ambient-color);
  --jp-elevation-z24: 0 11px 15px -7px var(--jp-shadow-umbra-color),
    0 24px 38px 3px var(--jp-shadow-penumbra-color),
    0 9px 46px 8px var(--jp-shadow-ambient-color);

  /* Borders
   *
   * The following variables, specify the visual styling of borders in JupyterLab.
   */

  --jp-border-width: 1px;
  --jp-border-color0: var(--md-grey-400);
  --jp-border-color1: var(--md-grey-400);
  --jp-border-color2: var(--md-grey-300);
  --jp-border-color3: var(--md-grey-200);
  --jp-inverse-border-color: var(--md-grey-600);
  --jp-border-radius: 2px;

  /* UI Fonts
   *
   * The UI font CSS variables are used for the typography all of the JupyterLab
   * user interface elements that are not directly user generated content.
   *
   * The font sizing here is done assuming that the body font size of --jp-ui-font-size1
   * is applied to a parent element. When children elements, such as headings, are sized
   * in em all things will be computed relative to that body size.
   */

  --jp-ui-font-scale-factor: 1.2;
  --jp-ui-font-size0: 0.83333em;
  --jp-ui-font-size1: 13px; /* Base font size */
  --jp-ui-font-size2: 1.2em;
  --jp-ui-font-size3: 1.44em;
  --jp-ui-font-family: system-ui, -apple-system, blinkmacsystemfont, 'Segoe UI',
    helvetica, arial, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji',
    'Segoe UI Symbol';

  /*
   * Use these font colors against the corresponding main layout colors.
   * In a light theme, these go from dark to light.
   */

  /* Defaults use Material Design specification */
  --jp-ui-font-color0: rgba(0, 0, 0, 1);
  --jp-ui-font-color1: rgba(0, 0, 0, 0.87);
  --jp-ui-font-color2: rgba(0, 0, 0, 0.54);
  --jp-ui-font-color3: rgba(0, 0, 0, 0.38);

  /*
   * Use these against the brand/accent/warn/error colors.
   * These will typically go from light to darker, in both a dark and light theme.
   */

  --jp-ui-inverse-font-color0: rgba(255, 255, 255, 1);
  --jp-ui-inverse-font-color1: rgba(255, 255, 255, 1);
  --jp-ui-inverse-font-color2: rgba(255, 255, 255, 0.7);
  --jp-ui-inverse-font-color3: rgba(255, 255, 255, 0.5);

  /* Content Fonts
   *
   * Content font variables are used for typography of user generated content.
   *
   * The font sizing here is done assuming that the body font size of --jp-content-font-size1
   * is applied to a parent element. When children elements, such as headings, are sized
   * in em all things will be computed relative to that body size.
   */

  --jp-content-line-height: 1.6;
  --jp-content-font-scale-factor: 1.2;
  --jp-content-font-size0: 0.83333em;
  --jp-content-font-size1: 14px; /* Base font size */
  --jp-content-font-size2: 1.2em;
  --jp-content-font-size3: 1.44em;
  --jp-content-font-size4: 1.728em;
  --jp-content-font-size5: 2.0736em;

  /* This gives a magnification of about 125% in presentation mode over normal. */
  --jp-content-presentation-font-size1: 17px;
  --jp-content-heading-line-height: 1;
  --jp-content-heading-margin-top: 1.2em;
  --jp-content-heading-margin-bottom: 0.8em;
  --jp-content-heading-font-weight: 500;

  /* Defaults use Material Design specification */
  --jp-content-font-color0: rgba(0, 0, 0, 1);
  --jp-content-font-color1: rgba(0, 0, 0, 0.87);
  --jp-content-font-color2: rgba(0, 0, 0, 0.54);
  --jp-content-font-color3: rgba(0, 0, 0, 0.38);
  --jp-content-link-color: var(--md-blue-900);
  --jp-content-font-family: system-ui, -apple-system, blinkmacsystemfont,
    'Segoe UI', helvetica, arial, sans-serif, 'Apple Color Emoji',
    'Segoe UI Emoji', 'Segoe UI Symbol';

  /*
   * Code Fonts
   *
   * Code font variables are used for typography of code and other monospaces content.
   */

  --jp-code-font-size: 13px;
  --jp-code-line-height: 1.3077; /* 17px for 13px base */
  --jp-code-padding: 5px; /* 5px for 13px base, codemirror highlighting needs integer px value */
  --jp-code-font-family-default: menlo, consolas, 'DejaVu Sans Mono', monospace;
  --jp-code-font-family: var(--jp-code-font-family-default);

  /* This gives a magnification of about 125% in presentation mode over normal. */
  --jp-code-presentation-font-size: 16px;

  /* may need to tweak cursor width if you change font size */
  --jp-code-cursor-width0: 1.4px;
  --jp-code-cursor-width1: 2px;
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<body class="jp-Notebook" data-jp-theme-light="true" data-jp-theme-name="JupyterLab Light">
<main>
<div class="jp-Cell jp-MarkdownCell jp-Notebook-cell" id="cell-id=e432191d-11a8-453f-9cbc-4d297e29bdfe">
<div class="jp-Cell-inputWrapper" tabindex="0">
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<div class="jp-InputArea jp-Cell-inputArea"><div class="jp-InputPrompt jp-InputArea-prompt">
</div><div class="jp-RenderedHTMLCommon jp-RenderedMarkdown jp-MarkdownOutput" data-mime-type="text/markdown">
<h2 id="1%E3%80%81python%E7%9A%84%E5%9F%BA%E7%A1%80">1、python的基础<a class="anchor-link" href="#1%E3%80%81python%E7%9A%84%E5%9F%BA%E7%A1%80">¶</a></h2>
</div>
</div>
</div>
</div>
<div class="jp-Cell jp-MarkdownCell jp-Notebook-cell" id="cell-id=70c1dc35-d681-4120-83af-88d42177f255">
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</div><div class="jp-RenderedHTMLCommon jp-RenderedMarkdown jp-MarkdownOutput" data-mime-type="text/markdown">
<h3 id="1.1%E3%80%81Python%E7%9A%84%E5%9F%BA%E7%A1%80%E8%BE%93%E5%87%BA">1.1、Python的基础输出<a class="anchor-link" href="#1.1%E3%80%81Python%E7%9A%84%E5%9F%BA%E7%A1%80%E8%BE%93%E5%87%BA">¶</a></h3>
</div>
</div>
</div>
</div><div class="jp-Cell jp-CodeCell jp-Notebook-cell" id="cell-id=a73fb8ee-65e3-4cda-8d7a-4b1685ce55de">
<div class="jp-Cell-inputWrapper" tabindex="0">
<div class="jp-Collapser jp-InputCollapser jp-Cell-inputCollapser">
</div>
<div class="jp-InputArea jp-Cell-inputArea">
<div class="jp-InputPrompt jp-InputArea-prompt">In [1]:</div>
<div class="jp-CodeMirrorEditor jp-Editor jp-InputArea-editor" data-type="inline">
<div class="cm-editor cm-s-jupyter">
<div class="highlight hl-ipython3"><pre><span></span><span class="nb">print</span><span class="p">(</span><span class="s2">"hello world"</span><span class="p">)</span>
</pre></div>
</div>
</div>
</div>
</div>
<div class="jp-Cell-outputWrapper">
<div class="jp-Collapser jp-OutputCollapser jp-Cell-outputCollapser">
</div>
<div class="jp-OutputArea jp-Cell-outputArea">
<div class="jp-OutputArea-child">
<div class="jp-OutputPrompt jp-OutputArea-prompt"></div>
<div class="jp-RenderedText jp-OutputArea-output" data-mime-type="text/plain" tabindex="0">
<pre>hello world
</pre>
</div>
</div>
</div>
</div>
</div>
<div class="jp-Cell jp-MarkdownCell jp-Notebook-cell" id="cell-id=4de85c4d-9264-48b2-aaf1-e715d41c355a">
<div class="jp-Cell-inputWrapper" tabindex="0">
<div class="jp-Collapser jp-InputCollapser jp-Cell-inputCollapser">
</div>
<div class="jp-InputArea jp-Cell-inputArea"><div class="jp-InputPrompt jp-InputArea-prompt">
</div><div class="jp-RenderedHTMLCommon jp-RenderedMarkdown jp-MarkdownOutput" data-mime-type="text/markdown">
<h3 id="1.2%E3%80%81%E5%8F%98%E9%87%8F%E7%9A%84%E5%A3%B0%E6%98%8E">1.2、变量的声明<a class="anchor-link" href="#1.2%E3%80%81%E5%8F%98%E9%87%8F%E7%9A%84%E5%A3%B0%E6%98%8E">¶</a></h3>
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</div>
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<div class="jp-Cell jp-MarkdownCell jp-Notebook-cell" id="cell-id=025cd46b-7924-4977-b556-afabdd3f1229">
<div class="jp-Cell-inputWrapper" tabindex="0">
<div class="jp-Collapser jp-InputCollapser jp-Cell-inputCollapser">
</div>
<div class="jp-InputArea jp-Cell-inputArea"><div class="jp-InputPrompt jp-InputArea-prompt">
</div><div class="jp-RenderedHTMLCommon jp-RenderedMarkdown jp-MarkdownOutput" data-mime-type="text/markdown">
<p>python中的变量是弱类型的，不用强制声明数据类型</p>
</div>
</div>
</div>
</div><div class="jp-Cell jp-CodeCell jp-Notebook-cell" id="cell-id=27d5bb69-7bac-43cb-8282-e3edec237652">
<div class="jp-Cell-inputWrapper" tabindex="0">
<div class="jp-Collapser jp-InputCollapser jp-Cell-inputCollapser">
</div>
<div class="jp-InputArea jp-Cell-inputArea">
<div class="jp-InputPrompt jp-InputArea-prompt">In [2]:</div>
<div class="jp-CodeMirrorEditor jp-Editor jp-InputArea-editor" data-type="inline">
<div class="cm-editor cm-s-jupyter">
<div class="highlight hl-ipython3"><pre><span></span><span class="n">a</span> <span class="o">=</span> <span class="mi">10</span>
<span class="c1"># a目前是整数</span>
<span class="nb">print</span><span class="p">(</span><span class="nb">type</span><span class="p">(</span><span class="n">a</span><span class="p">))</span>
<span class="c1"># a变成了string</span>
<span class="n">a</span> <span class="o">=</span> <span class="s2">"hello world"</span>
<span class="nb">print</span><span class="p">(</span><span class="nb">type</span><span class="p">(</span><span class="n">a</span><span class="p">),</span><span class="n">a</span><span class="p">)</span>
<span class="c1"># a变成了float</span>
<span class="n">a</span> <span class="o">=</span> <span class="mf">12.3</span>
<span class="nb">print</span><span class="p">(</span><span class="nb">type</span><span class="p">(</span><span class="n">a</span><span class="p">),</span><span class="n">a</span><span class="p">)</span>
<span class="sd">'''</span>
<span class="sd">没有用变量来声明，就意味着不会创建任何内存，这也就相当于多行注释</span>
<span class="sd">'''</span>

<span class="n">b</span> <span class="o">=</span> <span class="s1">'''</span>
<span class="s1">多行注释，其实是多行的字符串，</span>
<span class="s1">可以换行，如果没有变量来获取这个值，它就无效，相当于多行注释</span>
<span class="s1">'''</span>
<span class="nb">print</span><span class="p">(</span><span class="n">b</span><span class="p">)</span><span class="c1">#因为我使用b来接收了三个单引号的字符串，此时这个换行的字符串就被b所接收了</span>
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<pre>&lt;class 'int'&gt;
&lt;class 'str'&gt; hello world
&lt;class 'float'&gt; 12.3

多行注释，其实是多行的字符串，
可以换行，如果没有变量来获取这个值，它就无效，相当于多行注释

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<h3 id="1.3%E3%80%81%E6%95%B4%E6%95%B0%E7%B1%BB%E5%9E%8B">1.3、整数类型<a class="anchor-link" href="#1.3%E3%80%81%E6%95%B4%E6%95%B0%E7%B1%BB%E5%9E%8B">¶</a></h3>
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<div class="highlight hl-ipython3"><pre><span></span><span class="n">a</span> <span class="o">=</span> <span class="mi">10</span>
<span class="nb">print</span><span class="p">(</span><span class="nb">id</span><span class="p">(</span><span class="n">a</span><span class="p">),</span><span class="nb">type</span><span class="p">(</span><span class="n">a</span><span class="p">),</span><span class="n">a</span><span class="p">)</span>
<span class="n">b</span> <span class="o">=</span> <span class="mi">10</span> <span class="c1"># b=a</span>
<span class="nb">print</span><span class="p">(</span><span class="nb">id</span><span class="p">(</span><span class="n">b</span><span class="p">),</span><span class="nb">type</span><span class="p">(</span><span class="n">b</span><span class="p">),</span><span class="n">b</span><span class="p">)</span>
<span class="n">b</span> <span class="o">=</span> <span class="mi">20</span>
<span class="nb">print</span><span class="p">(</span><span class="nb">id</span><span class="p">(</span><span class="n">b</span><span class="p">),</span><span class="nb">type</span><span class="p">(</span><span class="n">b</span><span class="p">),</span><span class="n">b</span><span class="p">,</span><span class="n">a</span><span class="p">)</span>
<span class="n">a</span> <span class="o">=</span> <span class="mi">30</span>
<span class="nb">print</span><span class="p">(</span><span class="nb">id</span><span class="p">(</span><span class="n">a</span><span class="p">),</span><span class="n">a</span><span class="p">)</span> <span class="c1">#a的id会发生变化</span>
<span class="n">c</span> <span class="o">=</span> <span class="mi">10</span>
<span class="nb">print</span><span class="p">(</span><span class="nb">id</span><span class="p">(</span><span class="n">c</span><span class="p">),</span><span class="n">c</span><span class="p">)</span> <span class="c1">#c的内存是原来10的那个内存，</span>
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<pre>1475368872528 &lt;class 'int'&gt; 10
1475368872528 &lt;class 'int'&gt; 10
1475368872848 &lt;class 'int'&gt; 20 10
1475368873168 30
1475368872528 10
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<p>出现以上结果的原因是python有一个内存驻留的机制，它会自动把一些常见的字符串和0-1024之间的整数存储在单独的内存里面，如果使用到，就直接调用这块内存，这样就不用新分配内存空间了!</p>
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<div class="highlight hl-ipython3"><pre><span></span><span class="n">a</span> <span class="o">=</span> <span class="mi">1999</span>
<span class="nb">print</span><span class="p">(</span><span class="nb">id</span><span class="p">(</span><span class="n">a</span><span class="p">),</span><span class="n">a</span><span class="p">)</span>
<span class="n">a</span> <span class="o">=</span> <span class="mi">2000</span>
<span class="nb">print</span><span class="p">(</span><span class="nb">id</span><span class="p">(</span><span class="n">a</span><span class="p">),</span><span class="n">a</span><span class="p">)</span>
<span class="n">a</span> <span class="o">=</span> <span class="mi">1999</span>
<span class="nb">print</span><span class="p">(</span><span class="nb">id</span><span class="p">(</span><span class="n">a</span><span class="p">),</span><span class="n">a</span><span class="p">)</span>
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<pre>1475446198448 1999
1475446198960 2000
1475446198352 1999
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<h3 id="1.4%E3%80%81%E5%B0%8F%E6%95%B0%E7%B1%BB%E5%9E%8B">1.4、小数类型<a class="anchor-link" href="#1.4%E3%80%81%E5%B0%8F%E6%95%B0%E7%B1%BB%E5%9E%8B">¶</a></h3>
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<div class="highlight hl-ipython3"><pre><span></span><span class="n">a</span> <span class="o">=</span> <span class="mf">12.3</span>
<span class="nb">print</span><span class="p">(</span><span class="nb">id</span><span class="p">(</span><span class="n">a</span><span class="p">),</span><span class="nb">type</span><span class="p">(</span><span class="n">a</span><span class="p">),</span><span class="n">a</span><span class="p">)</span>
<span class="n">b</span> <span class="o">=</span> <span class="mi">12</span>
<span class="n">c</span> <span class="o">=</span> <span class="n">a</span><span class="o">+</span><span class="n">b</span><span class="c1">#浮点数和整数运算，会自动将整数转换为浮点数</span>
<span class="nb">print</span><span class="p">(</span><span class="nb">id</span><span class="p">(</span><span class="n">c</span><span class="p">),</span><span class="nb">type</span><span class="p">(</span><span class="n">c</span><span class="p">),</span><span class="n">c</span><span class="p">)</span>
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<pre>1475445804848 &lt;class 'float'&gt; 12.3
1475445804944 &lt;class 'float'&gt; 24.3
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<h3 id="1.5%E3%80%81%E5%AD%97%E7%AC%A6%E4%B8%B2%E7%B1%BB%E5%9E%8B">1.5、字符串类型<a class="anchor-link" href="#1.5%E3%80%81%E5%AD%97%E7%AC%A6%E4%B8%B2%E7%B1%BB%E5%9E%8B">¶</a></h3>
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<div class="highlight hl-ipython3"><pre><span></span><span class="n">s1</span> <span class="o">=</span> <span class="s2">"23"</span>
<span class="n">s1</span> <span class="o">=</span> <span class="s1">'23'</span>
<span class="nb">print</span><span class="p">(</span><span class="n">s1</span><span class="p">,</span><span class="nb">id</span><span class="p">(</span><span class="n">s1</span><span class="p">),</span><span class="nb">type</span><span class="p">(</span><span class="n">s1</span><span class="p">))</span>
<span class="n">a</span> <span class="o">=</span> <span class="mi">10</span>
<span class="c1">#s2 = a+s1 #python中不能用整数来加字符串，可以加浮点，是因为可以进行数字之间可以进行运算（其实是因为int这个类重写了add这个方法）</span>
<span class="n">s2</span> <span class="o">=</span> <span class="nb">str</span><span class="p">(</span><span class="n">a</span><span class="p">)</span><span class="o">+</span><span class="n">s1</span> <span class="c1">#强制类型转换</span>
<span class="nb">print</span><span class="p">(</span><span class="n">s2</span><span class="p">)</span>
<span class="n">c</span> <span class="o">=</span> <span class="n">a</span><span class="o">+</span><span class="nb">int</span><span class="p">(</span><span class="n">s1</span><span class="p">)</span><span class="c1">#将str强制转换为int</span>
<span class="nb">print</span><span class="p">(</span><span class="n">c</span><span class="p">)</span>
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<pre>23 1475446183152 &lt;class 'str'&gt;
1023
33
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<div class="highlight hl-ipython3"><pre><span></span><span class="n">s1</span> <span class="o">=</span> <span class="s2">"aabbccdd"</span>
<span class="n">s2</span> <span class="o">=</span> <span class="s2">"aabbccdd"</span>
<span class="nb">print</span><span class="p">(</span><span class="nb">id</span><span class="p">(</span><span class="n">s1</span><span class="p">),</span><span class="nb">id</span><span class="p">(</span><span class="n">s2</span><span class="p">))</span>
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<pre>1475446185392 1475446185392
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<h3 id="1.6%E3%80%81bool%E7%B1%BB%E5%9E%8B">1.6、bool类型<a class="anchor-link" href="#1.6%E3%80%81bool%E7%B1%BB%E5%9E%8B">¶</a></h3>
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<div class="highlight hl-ipython3"><pre><span></span><span class="n">a</span> <span class="o">=</span> <span class="kc">True</span> <span class="c1">#True和False的第一个字母是大写</span>
<span class="n">b</span> <span class="o">=</span> <span class="kc">False</span>
<span class="n">c</span> <span class="o">=</span> <span class="kc">True</span>
<span class="nb">print</span><span class="p">(</span><span class="nb">id</span><span class="p">(</span><span class="n">a</span><span class="p">),</span><span class="nb">id</span><span class="p">(</span><span class="n">b</span><span class="p">),</span><span class="nb">id</span><span class="p">(</span><span class="n">c</span><span class="p">),</span><span class="n">a</span><span class="p">,</span><span class="n">b</span><span class="p">,</span><span class="n">c</span><span class="p">)</span>
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<pre>140716139866216 140716139866248 140716139866216 True False True
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<h3 id="1.7%E3%80%81%E8%BE%93%E5%85%A5%E5%92%8C%E8%BE%93%E5%87%BA">1.7、输入和输出<a class="anchor-link" href="#1.7%E3%80%81%E8%BE%93%E5%85%A5%E5%92%8C%E8%BE%93%E5%87%BA">¶</a></h3>
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<div class="highlight hl-ipython3"><pre><span></span><span class="n">a</span> <span class="o">=</span> <span class="nb">input</span><span class="p">(</span><span class="s2">"请输入a的值"</span><span class="p">)</span>
<span class="nb">print</span><span class="p">(</span><span class="n">a</span><span class="p">,</span><span class="nb">id</span><span class="p">(</span><span class="n">a</span><span class="p">),</span><span class="nb">type</span><span class="p">(</span><span class="n">a</span><span class="p">))</span> <span class="c1">#输入之后是字符串类型</span>
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<pre>1 1475369495664 &lt;class 'str'&gt;
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<div class="highlight hl-ipython3"><pre><span></span><span class="n">name</span> <span class="o">=</span> <span class="nb">input</span><span class="p">(</span><span class="s2">"请输入姓名:"</span><span class="p">)</span>
<span class="n">age</span> <span class="o">=</span> <span class="nb">int</span><span class="p">(</span><span class="nb">input</span><span class="p">(</span><span class="s2">"请输入年龄:"</span><span class="p">))</span>
<span class="nb">print</span><span class="p">(</span><span class="s2">"我叫"</span><span class="o">+</span><span class="n">name</span><span class="o">+</span><span class="s2">"，我的年龄是:"</span><span class="o">+</span><span class="nb">str</span><span class="p">(</span><span class="n">age</span><span class="p">)</span><span class="o">+</span><span class="s2">"，再过一年，我的年龄是"</span><span class="o">+</span><span class="nb">str</span><span class="p">(</span><span class="n">age</span><span class="o">+</span><span class="mi">1</span><span class="p">))</span>
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<pre>我叫1，我的年龄是:1，再过一年，我的年龄是2
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<p>有三种方式可以进行输出的控制
1、通配符
2、占位符
3、f通配符</p>
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<div class="highlight hl-ipython3"><pre><span></span><span class="n">name</span> <span class="o">=</span> <span class="nb">input</span><span class="p">(</span><span class="s2">"请输入姓名:"</span><span class="p">)</span>
<span class="n">age</span> <span class="o">=</span> <span class="nb">int</span><span class="p">(</span><span class="nb">input</span><span class="p">(</span><span class="s2">"请输入年龄:"</span><span class="p">))</span>
<span class="nb">print</span><span class="p">(</span><span class="s2">"姓名是:</span><span class="si">%s</span><span class="s2">,年龄是</span><span class="si">%d</span><span class="s2">,一年之后是</span><span class="si">%d</span><span class="s2">"</span><span class="o">%</span><span class="p">(</span><span class="n">name</span><span class="p">,</span><span class="n">age</span><span class="p">,</span><span class="n">age</span><span class="o">+</span><span class="mi">1</span><span class="p">))</span> <span class="c1">#基于C语言的通配符方式</span>
<span class="nb">print</span><span class="p">(</span><span class="s2">"姓名是</span><span class="si">{}</span><span class="s2">,年龄是</span><span class="si">{}</span><span class="s2">,一年之后是</span><span class="si">{}</span><span class="s2">"</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="n">name</span><span class="p">,</span><span class="n">age</span><span class="p">,</span><span class="n">age</span><span class="o">+</span><span class="mi">1</span><span class="p">))</span><span class="c1">#基于占位符</span>
<span class="nb">print</span><span class="p">(</span><span class="sa">f</span><span class="s2">"姓名是</span><span class="si">{</span><span class="n">name</span><span class="si">}</span><span class="s2">,年龄是</span><span class="si">{</span><span class="n">age</span><span class="si">}</span><span class="s2">,一年之后是</span><span class="si">{</span><span class="n">age</span><span class="o">+</span><span class="mi">1</span><span class="si">}</span><span class="s2">"</span><span class="p">)</span> <span class="c1">#最常见的使用方式</span>
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<pre>姓名是:1,年龄是1,一年之后是2
姓名是1,年龄是1,一年之后是2
姓名是1,年龄是1,一年之后是2
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<h2 id="2.%E8%BF%90%E7%AE%97%E7%AC%A6">2.运算符<a class="anchor-link" href="#2.%E8%BF%90%E7%AE%97%E7%AC%A6">¶</a></h2>
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<h3 id="2.1%E3%80%81%E8%BF%90%E7%AE%97%E7%AC%A6%E5%9F%BA%E7%A1%80">2.1、运算符基础<a class="anchor-link" href="#2.1%E3%80%81%E8%BF%90%E7%AE%97%E7%AC%A6%E5%9F%BA%E7%A1%80">¶</a></h3>
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<div class="highlight hl-ipython3"><pre><span></span><span class="nb">print</span><span class="p">(</span><span class="mi">1</span><span class="o">/</span><span class="mi">2</span><span class="p">)</span><span class="c1">#会自动转换为float</span>
<span class="nb">print</span><span class="p">(</span><span class="mi">3</span><span class="o">//</span><span class="mi">2</span><span class="p">)</span><span class="c1">#除完之后取整</span>
<span class="nb">print</span><span class="p">(</span><span class="mi">10</span><span class="o">%</span><span class="k">4</span>)#取余数
<span class="nb">print</span><span class="p">(</span><span class="mi">3</span><span class="o">*</span><span class="mi">4</span><span class="p">)</span><span class="c1">#12</span>
<span class="nb">print</span><span class="p">(</span><span class="mi">2</span><span class="o">**</span><span class="mi">3</span><span class="p">)</span><span class="c1">#表示2的3次方</span>
<span class="nb">print</span><span class="p">(</span><span class="s2">"$"</span><span class="o">*</span><span class="mi">10</span><span class="p">)</span><span class="c1">#输出10遍$</span>
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<pre>0.5
1
2
12
8
$$$$$$$$$$
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<h3 id="2.2%E3%80%81%E8%B5%8B%E5%80%BC%E8%BF%90%E7%AE%97%E7%AC%A6">2.2、赋值运算符<a class="anchor-link" href="#2.2%E3%80%81%E8%B5%8B%E5%80%BC%E8%BF%90%E7%AE%97%E7%AC%A6">¶</a></h3>
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<div class="highlight hl-ipython3"><pre><span></span><span class="n">a</span> <span class="o">=</span> <span class="n">b</span> <span class="o">=</span> <span class="n">c</span> <span class="o">=</span> <span class="mi">10</span>
<span class="nb">print</span><span class="p">(</span><span class="n">a</span><span class="p">,</span><span class="n">b</span><span class="p">,</span><span class="n">c</span><span class="p">)</span>
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<pre>10 10 10
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<div class="highlight hl-ipython3"><pre><span></span><span class="n">a</span><span class="p">,</span><span class="n">b</span><span class="p">,</span><span class="n">c</span> <span class="o">=</span> <span class="mi">12</span><span class="p">,</span><span class="mi">22</span><span class="p">,</span><span class="mi">33</span>
<span class="nb">print</span><span class="p">(</span><span class="n">a</span><span class="p">,</span><span class="n">b</span><span class="p">,</span><span class="n">c</span><span class="p">)</span>
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<pre>12 22 33
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<div class="highlight hl-ipython3"><pre><span></span><span class="n">a</span><span class="p">,</span><span class="n">b</span> <span class="o">=</span> <span class="mi">10</span><span class="p">,</span><span class="mi">20</span>
<span class="n">a</span><span class="p">,</span><span class="n">b</span> <span class="o">=</span> <span class="n">b</span><span class="p">,</span><span class="n">a</span> <span class="c1">#数值交换</span>
<span class="nb">print</span><span class="p">(</span><span class="n">a</span><span class="p">,</span><span class="n">b</span><span class="p">)</span>
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<pre>20 10
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<div class="highlight hl-ipython3"><pre><span></span><span class="n">a</span> <span class="o">=</span> <span class="mi">10</span>
<span class="n">a</span><span class="o">+=</span><span class="mi">10</span>
<span class="nb">print</span><span class="p">(</span><span class="n">a</span><span class="p">)</span>
<span class="c1">#a++ python没有++和--</span>
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<pre>20
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<h3 id="2.3%E3%80%81%E6%AF%94%E8%BE%83%E8%BF%90%E7%AE%97%E7%AC%A6">2.3、比较运算符<a class="anchor-link" href="#2.3%E3%80%81%E6%AF%94%E8%BE%83%E8%BF%90%E7%AE%97%E7%AC%A6">¶</a></h3>
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<div class="highlight hl-ipython3"><pre><span></span><span class="n">a</span> <span class="o">=</span> <span class="mi">1099</span>
<span class="n">b</span> <span class="o">=</span> <span class="mi">1099</span>
<span class="nb">print</span><span class="p">(</span><span class="n">a</span> <span class="ow">is</span> <span class="n">b</span><span class="p">)</span> <span class="c1">#比较id 1099没有内存驻留，所以id不一样，但是如果是10，有内存驻留，id一样</span>
<span class="nb">print</span><span class="p">(</span><span class="n">a</span><span class="o">==</span><span class="n">b</span><span class="p">)</span><span class="c1">#比较val</span>
<span class="n">c</span> <span class="o">=</span> <span class="mi">1022</span>
<span class="nb">print</span><span class="p">(</span><span class="nb">id</span><span class="p">(</span><span class="n">c</span><span class="p">),</span><span class="n">c</span><span class="p">)</span>
<span class="n">c</span><span class="o">+=</span><span class="mi">0</span>
<span class="nb">print</span><span class="p">(</span><span class="nb">id</span><span class="p">(</span><span class="n">c</span><span class="p">),</span><span class="n">c</span><span class="p">)</span> <span class="c1">#id不一样，因为没有内存驻留</span>
<span class="nb">print</span><span class="p">(</span><span class="n">c</span><span class="o">&gt;=</span><span class="mi">1022</span><span class="p">)</span>
<span class="nb">print</span><span class="p">(</span><span class="n">c</span><span class="o">&gt;=</span><span class="mi">10</span> <span class="o">&amp;</span> <span class="n">b</span><span class="o">==</span><span class="mi">1099</span><span class="p">)</span> <span class="c1">#python没有两个&amp;&amp;，一个&amp;是可以的，但是再做位运算</span>
<span class="nb">print</span><span class="p">(</span><span class="n">c</span><span class="o">&gt;=</span><span class="mi">0</span> <span class="ow">and</span> <span class="n">b</span><span class="o">==</span><span class="mi">1099</span><span class="p">)</span> <span class="c1">#and是与，or是或</span>
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<pre>False
True
1475446199088 1022
1475446199664 1022
True
False
True
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<h3 id="2.4%E3%80%81%E5%AF%B9%E8%B1%A1%E7%9A%84%E5%B8%83%E5%B0%94%E5%80%BC">2.4、对象的布尔值<a class="anchor-link" href="#2.4%E3%80%81%E5%AF%B9%E8%B1%A1%E7%9A%84%E5%B8%83%E5%B0%94%E5%80%BC">¶</a></h3>
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<div class="jp-InputPrompt jp-InputArea-prompt">In [18]:</div>
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<div class="highlight hl-ipython3"><pre><span></span><span class="nb">print</span><span class="p">(</span><span class="nb">bool</span><span class="p">(</span><span class="kc">False</span><span class="p">))</span>
<span class="nb">print</span><span class="p">(</span><span class="nb">bool</span><span class="p">(</span><span class="mi">0</span><span class="p">))</span>
<span class="nb">print</span><span class="p">(</span><span class="nb">bool</span><span class="p">(</span><span class="mf">0.0</span><span class="p">))</span>
<span class="nb">print</span><span class="p">(</span><span class="nb">bool</span><span class="p">(</span><span class="s1">''</span><span class="p">))</span>
<span class="nb">print</span><span class="p">(</span><span class="nb">bool</span><span class="p">(</span><span class="kc">None</span><span class="p">))</span>
<span class="nb">print</span><span class="p">(</span><span class="nb">bool</span><span class="p">(</span><span class="s2">""</span><span class="p">))</span> <span class="c1">#空字符</span>
<span class="nb">print</span><span class="p">(</span><span class="nb">bool</span><span class="p">([]))</span> <span class="c1">#空列表</span>
<span class="nb">print</span><span class="p">(</span><span class="nb">bool</span><span class="p">(()))</span> <span class="c1">#空元组</span>
<span class="nb">print</span><span class="p">(</span><span class="nb">bool</span><span class="p">({}))</span> <span class="c1">#空字典</span>
<span class="nb">print</span><span class="p">(</span><span class="nb">bool</span><span class="p">(</span><span class="nb">dict</span><span class="p">()))</span> <span class="c1">#空字典</span>
<span class="nb">print</span><span class="p">(</span><span class="nb">bool</span><span class="p">(</span><span class="nb">set</span><span class="p">()))</span> <span class="c1">#空集合</span>
<span class="nb">print</span><span class="p">(</span><span class="nb">bool</span><span class="p">(</span><span class="o">-</span><span class="mi">1</span><span class="p">))</span> <span class="c1">#-1的bool值是true</span>
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<pre>False
False
False
False
False
False
False
False
False
False
False
True
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<h2 id="3.%E8%AF%AD%E5%8F%A5%E7%BB%93%E6%9E%84">3.语句结构<a class="anchor-link" href="#3.%E8%AF%AD%E5%8F%A5%E7%BB%93%E6%9E%84">¶</a></h2>
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<h3 id="3.1%E3%80%81%E9%A1%BA%E5%BA%8F%E7%BB%93%E6%9E%84">3.1、顺序结构<a class="anchor-link" href="#3.1%E3%80%81%E9%A1%BA%E5%BA%8F%E7%BB%93%E6%9E%84">¶</a></h3>
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<div class="jp-InputPrompt jp-InputArea-prompt">In [19]:</div>
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<div class="highlight hl-ipython3"><pre><span></span><span class="n">a</span> <span class="o">=</span> <span class="mi">10</span>
<span class="nb">print</span><span class="p">(</span><span class="n">a</span><span class="p">)</span>
<span class="n">a</span><span class="o">+=</span><span class="mi">20</span>
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<pre>10
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<h3 id="3.2%E3%80%81%E9%80%89%E6%8B%A9%E7%BB%93%E6%9E%84">3.2、选择结构<a class="anchor-link" href="#3.2%E3%80%81%E9%80%89%E6%8B%A9%E7%BB%93%E6%9E%84">¶</a></h3>
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<div class="highlight hl-ipython3"><pre><span></span><span class="n">a</span> <span class="o">=</span> <span class="mi">10</span>
<span class="k">if</span> <span class="n">a</span><span class="o">&gt;=</span><span class="mi">10</span><span class="p">:</span>
    <span class="nb">print</span><span class="p">(</span><span class="s2">"a&gt;=10"</span><span class="p">)</span>
    <span class="nb">print</span><span class="p">(</span><span class="mi">30</span><span class="p">)</span>
<span class="nb">print</span><span class="p">(</span><span class="mi">20</span><span class="p">)</span>
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<pre>a&gt;=10
30
20
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<div class="highlight hl-ipython3"><pre><span></span><span class="k">if</span> <span class="n">a</span><span class="o">==</span><span class="mi">10</span><span class="p">:</span>
    <span class="c1">#不能有空语句块，否则编译就报错了!</span>
    <span class="k">pass</span> <span class="c1">#如果有个空语句块，可以加个pass表示什么都不做</span>
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<div class="highlight hl-ipython3"><pre><span></span><span class="n">ach</span> <span class="o">=</span> <span class="nb">int</span><span class="p">(</span><span class="nb">input</span><span class="p">(</span><span class="s2">"请输入成绩:"</span><span class="p">))</span>
<span class="k">if</span> <span class="n">ach</span><span class="o">&gt;=</span><span class="mi">90</span><span class="p">:</span>
    <span class="nb">print</span><span class="p">(</span><span class="s2">"A"</span><span class="p">)</span>
<span class="k">elif</span> <span class="n">a</span><span class="o">&gt;=</span><span class="mi">80</span><span class="p">:</span>
    <span class="nb">print</span><span class="p">(</span><span class="s2">"B"</span><span class="p">)</span>
<span class="k">elif</span> <span class="n">a</span><span class="o">&gt;=</span><span class="mi">70</span><span class="p">:</span>
    <span class="nb">print</span><span class="p">(</span><span class="s2">"C"</span><span class="p">)</span>
<span class="k">elif</span> <span class="n">a</span><span class="o">&gt;=</span><span class="mi">60</span><span class="p">:</span>
    <span class="nb">print</span><span class="p">(</span><span class="s2">"不多不少!"</span><span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
    <span class="nb">print</span><span class="p">(</span><span class="s2">"准备补考"</span><span class="p">)</span>
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<pre>准备补考
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<h4 id="3.2.2%E3%80%81%E6%9D%A1%E4%BB%B6%E8%A1%A8%E8%BE%BE%E5%BC%8F">3.2.2、条件表达式<a class="anchor-link" href="#3.2.2%E3%80%81%E6%9D%A1%E4%BB%B6%E8%A1%A8%E8%BE%BE%E5%BC%8F">¶</a></h4>
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<div class="jp-InputPrompt jp-InputArea-prompt">In [23]:</div>
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<div class="highlight hl-ipython3"><pre><span></span><span class="n">a</span><span class="p">,</span><span class="n">b</span> <span class="o">=</span> <span class="mi">20</span><span class="p">,</span><span class="mi">30</span>
<span class="nb">print</span><span class="p">(</span><span class="sa">f</span><span class="s2">"</span><span class="si">{</span><span class="n">a</span><span class="si">}</span><span class="s2">&gt;</span><span class="si">{</span><span class="n">b</span><span class="si">}</span><span class="s2">"</span><span class="p">)</span> <span class="k">if</span> <span class="n">a</span><span class="o">&gt;</span><span class="n">b</span> <span class="k">else</span> <span class="nb">print</span><span class="p">(</span><span class="sa">f</span><span class="s2">"</span><span class="si">{</span><span class="n">a</span><span class="si">}</span><span class="s2">&lt;</span><span class="si">{</span><span class="n">b</span><span class="si">}</span><span class="s2">"</span><span class="p">)</span>
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<pre>20&lt;30
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<h3 id="3.3%E3%80%81%E5%BE%AA%E7%8E%AF%E7%BB%93%E6%9E%84">3.3、循环结构<a class="anchor-link" href="#3.3%E3%80%81%E5%BE%AA%E7%8E%AF%E7%BB%93%E6%9E%84">¶</a></h3>
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<h4 id="3.3.1%E3%80%81for%E5%BE%AA%E7%8E%AF">3.3.1、for循环<a class="anchor-link" href="#3.3.1%E3%80%81for%E5%BE%AA%E7%8E%AF">¶</a></h4>
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<div class="highlight hl-ipython3"><pre><span></span><span class="kn">import</span><span class="w"> </span><span class="nn">sys</span>
<span class="n">r1</span> <span class="o">=</span> <span class="nb">range</span><span class="p">(</span><span class="mi">10</span><span class="p">)</span> <span class="c1">##会产生0-9的一个迭代器，相当于 range(0,10)</span>
<span class="c1">#原则式包头不包尾</span>
<span class="nb">print</span><span class="p">(</span><span class="nb">type</span><span class="p">(</span><span class="n">r1</span><span class="p">),</span><span class="nb">id</span><span class="p">(</span><span class="n">r1</span><span class="p">),</span><span class="n">r1</span><span class="p">,</span><span class="n">sys</span><span class="o">.</span><span class="n">getsizeof</span><span class="p">(</span><span class="n">r1</span><span class="p">))</span>
<span class="n">r2</span> <span class="o">=</span> <span class="nb">range</span><span class="p">(</span><span class="mi">100</span><span class="p">,</span><span class="mi">200</span><span class="p">)</span>
<span class="c1">#迭代器的好处就是用到才分配内存</span>
<span class="nb">print</span><span class="p">(</span><span class="n">sys</span><span class="o">.</span><span class="n">getsizeof</span><span class="p">(</span><span class="n">r2</span><span class="p">))</span>

<span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="n">r1</span><span class="p">:</span>
    <span class="nb">print</span><span class="p">(</span><span class="n">i</span><span class="p">)</span>
<span class="nb">print</span><span class="p">(</span><span class="s2">"-"</span><span class="o">*</span><span class="mi">100</span><span class="p">)</span>
<span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="n">r2</span><span class="p">:</span>
    <span class="nb">print</span><span class="p">(</span><span class="n">i</span><span class="p">,</span><span class="n">end</span><span class="o">=</span><span class="s2">","</span><span class="p">)</span>
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<pre>&lt;class 'range'&gt; 1475463064816 range(0, 10) 48
48
0
1
2
3
4
5
6
7
8
9
----------------------------------------------------------------------------------------------------
100,101,102,103,104,105,106,107,108,109,110,111,112,113,114,115,116,117,118,119,120,121,122,123,124,125,126,127,128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,160,161,162,163,164,165,166,167,168,169,170,171,172,173,174,175,176,177,178,179,180,181,182,183,184,185,186,187,188,189,190,191,192,193,194,195,196,197,198,199,</pre>
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<h4 id="3.3.2%E3%80%81while%E5%BE%AA%E7%8E%AF">3.3.2、while循环<a class="anchor-link" href="#3.3.2%E3%80%81while%E5%BE%AA%E7%8E%AF">¶</a></h4>
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<div class="highlight hl-ipython3"><pre><span></span><span class="n">i</span> <span class="o">=</span> <span class="mi">1</span>
<span class="k">while</span> <span class="n">i</span><span class="o">&lt;=</span><span class="mi">10</span><span class="p">:</span>
    <span class="k">if</span> <span class="n">i</span><span class="o">==</span><span class="mi">5</span><span class="p">:</span>
        <span class="n">i</span><span class="o">+=</span><span class="mi">1</span>
        <span class="c1"># continue</span>
        <span class="k">break</span>
    <span class="nb">print</span><span class="p">(</span><span class="n">i</span><span class="p">)</span>
    <span class="n">i</span><span class="o">+=</span><span class="mi">1</span>
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<pre>1
2
3
4
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<div class="highlight hl-ipython3"><pre><span></span><span class="c1">#输出1-100之间能够被3整除的数之和</span>
<span class="nb">sum</span> <span class="o">=</span> <span class="mi">0</span>
<span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span><span class="mi">101</span><span class="p">):</span>
    <span class="k">if</span> <span class="n">i</span><span class="o">%</span><span class="k">3</span>==0:
        <span class="nb">sum</span><span class="o">+=</span><span class="n">i</span>
<span class="nb">print</span><span class="p">(</span><span class="nb">sum</span><span class="p">)</span>
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<pre>1683
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<div class="highlight hl-ipython3"><pre><span></span><span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span><span class="mi">10</span><span class="p">):</span>
    <span class="k">for</span> <span class="n">j</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span><span class="n">i</span><span class="o">+</span><span class="mi">1</span><span class="p">):</span>
        <span class="nb">print</span><span class="p">(</span><span class="sa">f</span><span class="s2">"</span><span class="si">{</span><span class="n">j</span><span class="si">}</span><span class="s2">*</span><span class="si">{</span><span class="n">i</span><span class="si">}</span><span class="s2">=</span><span class="si">{</span><span class="n">i</span><span class="o">*</span><span class="n">j</span><span class="si">}</span><span class="s2">"</span><span class="p">,</span><span class="n">end</span><span class="o">=</span><span class="s2">"</span><span class="se">\t</span><span class="s2">"</span><span class="p">)</span>
    <span class="nb">print</span><span class="p">()</span>
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<pre>1*1=1	
1*2=2	2*2=4	
1*3=3	2*3=6	3*3=9	
1*4=4	2*4=8	3*4=12	4*4=16	
1*5=5	2*5=10	3*5=15	4*5=20	5*5=25	
1*6=6	2*6=12	3*6=18	4*6=24	5*6=30	6*6=36	
1*7=7	2*7=14	3*7=21	4*7=28	5*7=35	6*7=42	7*7=49	
1*8=8	2*8=16	3*8=24	4*8=32	5*8=40	6*8=48	7*8=56	8*8=64	
1*9=9	2*9=18	3*9=27	4*9=36	5*9=45	6*9=54	7*9=63	8*9=72	9*9=81	
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<h3 id="3.3.3%E3%80%81%E5%BE%AA%E7%8E%AF%E4%B8%AD%E7%9A%84else">3.3.3、循环中的else<a class="anchor-link" href="#3.3.3%E3%80%81%E5%BE%AA%E7%8E%AF%E4%B8%AD%E7%9A%84else">¶</a></h3><p>在python中循环结构可以写else</p>
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<div class="highlight hl-ipython3"><pre><span></span><span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span><span class="mi">10</span><span class="p">):</span>
    <span class="k">if</span> <span class="n">i</span><span class="o">%</span><span class="k">5</span>==0:
        <span class="c1"># continue</span>
        <span class="k">break</span>
    <span class="nb">print</span><span class="p">(</span><span class="n">i</span><span class="p">)</span>
<span class="k">else</span><span class="p">:</span> <span class="c1">#循环中的else会在循环正常结束之和执行，如果循环是break退出的，就不会执行else</span>
    <span class="nb">print</span><span class="p">(</span><span class="s2">"end for"</span><span class="p">)</span> 
<span class="nb">print</span><span class="p">(</span><span class="s2">"all end"</span><span class="p">)</span>
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<pre>1
2
3
4
all end
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<h2 id="4.%E9%9B%86%E5%90%88%E6%93%8D%E4%BD%9C">4.集合操作<a class="anchor-link" href="#4.%E9%9B%86%E5%90%88%E6%93%8D%E4%BD%9C">¶</a></h2><h3 id="4.1%E3%80%81%E5%88%97%E8%A1%A8%E6%93%8D%E4%BD%9C">4.1、列表操作<a class="anchor-link" href="#4.1%E3%80%81%E5%88%97%E8%A1%A8%E6%93%8D%E4%BD%9C">¶</a></h3><h4 id="4.1.2%E3%80%81%E5%88%97%E8%A1%A8%E7%9A%84%E5%9F%BA%E7%A1%80">4.1.2、列表的基础<a class="anchor-link" href="#4.1.2%E3%80%81%E5%88%97%E8%A1%A8%E7%9A%84%E5%9F%BA%E7%A1%80">¶</a></h4>
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<div class="highlight hl-ipython3"><pre><span></span><span class="n">lst</span> <span class="o">=</span> <span class="nb">list</span><span class="p">()</span>
<span class="nb">print</span><span class="p">(</span><span class="n">lst</span><span class="p">,</span><span class="nb">type</span><span class="p">(</span><span class="n">lst</span><span class="p">),</span><span class="nb">id</span><span class="p">(</span><span class="n">lst</span><span class="p">))</span>
<span class="n">lst</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="mi">1</span><span class="p">)</span>
<span class="n">lst</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="mi">2</span><span class="p">)</span>
<span class="nb">print</span><span class="p">(</span><span class="n">lst</span><span class="p">)</span>
<span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="n">lst</span><span class="p">:</span>
    <span class="nb">print</span><span class="p">(</span><span class="n">i</span><span class="p">)</span>
<span class="c1">#获取集合中的元素和java的数组一样</span>
<span class="nb">print</span><span class="p">(</span><span class="s2">"-"</span><span class="o">*</span><span class="mi">10</span><span class="p">)</span>
<span class="nb">print</span><span class="p">(</span><span class="n">lst</span><span class="p">[</span><span class="mi">0</span><span class="p">])</span>
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<pre>[] &lt;class 'list'&gt; 1475475042560
[1, 2]
1
2
----------
1
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<div class="highlight hl-ipython3"><pre><span></span><span class="kn">import</span><span class="w"> </span><span class="nn">sys</span>
<span class="n">r1</span> <span class="o">=</span> <span class="nb">range</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span><span class="mi">100</span><span class="p">)</span> <span class="c1">#range是个迭代器，占用空间固定</span>
<span class="n">lst</span> <span class="o">=</span> <span class="nb">list</span><span class="p">(</span><span class="nb">range</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span><span class="mi">100</span><span class="p">))</span><span class="c1">#list会直接分配空间</span>
<span class="nb">print</span><span class="p">(</span><span class="nb">type</span><span class="p">(</span><span class="n">r1</span><span class="p">),</span><span class="nb">type</span><span class="p">(</span><span class="n">lst</span><span class="p">),</span><span class="n">sys</span><span class="o">.</span><span class="n">getsizeof</span><span class="p">(</span><span class="n">r1</span><span class="p">),</span><span class="n">sys</span><span class="o">.</span><span class="n">getsizeof</span><span class="p">(</span><span class="n">lst</span><span class="p">))</span>
<span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="n">lst</span><span class="p">:</span>
    <span class="nb">print</span><span class="p">(</span><span class="n">i</span><span class="p">,</span><span class="n">end</span><span class="o">=</span><span class="s1">','</span><span class="p">)</span>
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<pre>&lt;class 'range'&gt; &lt;class 'list'&gt; 48 848
1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98,99,</pre>
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<h4 id="4.1.3%E3%80%81%E5%88%97%E8%A1%A8%E7%94%9F%E6%88%90%E5%BC%8F">4.1.3、列表生成式<a class="anchor-link" href="#4.1.3%E3%80%81%E5%88%97%E8%A1%A8%E7%94%9F%E6%88%90%E5%BC%8F">¶</a></h4>
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<div class="highlight hl-ipython3"><pre><span></span><span class="n">lst1</span> <span class="o">=</span> <span class="nb">list</span><span class="p">([</span><span class="mi">1</span><span class="p">,</span><span class="mi">2</span><span class="p">,</span><span class="mi">3</span><span class="p">,</span><span class="mi">4</span><span class="p">])</span>
<span class="n">lst2</span> <span class="o">=</span> <span class="nb">list</span><span class="p">(</span><span class="nb">range</span><span class="p">(</span><span class="mi">10</span><span class="p">,</span><span class="mi">20</span><span class="p">))</span>
<span class="nb">print</span><span class="p">(</span><span class="n">lst1</span><span class="p">,</span><span class="n">lst2</span><span class="p">)</span>
<span class="c1">#列表生成式，生成式的结构: 表达式   循环条件</span>
<span class="n">lst3</span> <span class="o">=</span> <span class="p">[</span><span class="n">x</span><span class="o">**</span><span class="mi">2</span> <span class="k">for</span> <span class="n">x</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span><span class="mi">10</span><span class="p">)]</span>
<span class="nb">print</span><span class="p">(</span><span class="n">lst3</span><span class="p">)</span>
<span class="c1">#基于筛选条件的列表生成式</span>
<span class="n">lst3</span> <span class="o">=</span> <span class="p">[</span><span class="n">x</span><span class="o">**</span><span class="mi">2</span> <span class="k">for</span> <span class="n">x</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span><span class="mi">10</span><span class="p">)</span> <span class="k">if</span> <span class="n">x</span><span class="o">%</span><span class="k">2</span>==0]
<span class="nb">print</span><span class="p">(</span><span class="n">lst3</span><span class="p">)</span>
<span class="c1">#如果要进行更复杂的控制，可以使用条件表达式</span>
<span class="n">lst4</span> <span class="o">=</span> <span class="p">[</span><span class="n">x</span> <span class="k">if</span> <span class="n">x</span><span class="o">%</span><span class="k">2</span>==0 else x**2 for x in range(10)]
<span class="nb">print</span><span class="p">(</span><span class="n">lst4</span><span class="p">)</span>
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<pre>[1, 2, 3, 4] [10, 11, 12, 13, 14, 15, 16, 17, 18, 19]
[1, 4, 9, 16, 25, 36, 49, 64, 81]
[4, 16, 36, 64]
[0, 1, 2, 9, 4, 25, 6, 49, 8, 81]
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<h4 id="4.1.3%E3%80%81%E5%88%97%E8%A1%A8%E7%9A%84%E5%88%87%E7%89%87">4.1.3、列表的切片<a class="anchor-link" href="#4.1.3%E3%80%81%E5%88%97%E8%A1%A8%E7%9A%84%E5%88%87%E7%89%87">¶</a></h4>
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<div class="jp-InputPrompt jp-InputArea-prompt">In [61]:</div>
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<div class="highlight hl-ipython3"><pre><span></span><span class="n">lst</span> <span class="o">=</span> <span class="nb">list</span><span class="p">(</span><span class="nb">range</span><span class="p">(</span><span class="mi">10</span><span class="p">,</span><span class="mi">20</span><span class="p">))</span>
<span class="nb">print</span><span class="p">(</span><span class="n">lst</span><span class="p">)</span>
<span class="c1">#切片的结构 lst[start:end:step] #如果不写start表示从0开始，如果不写end，表示到最后，如果不写step表示为1</span>
<span class="c1">#切片完成之后得到的是一个新的列表</span>
<span class="nb">print</span><span class="p">(</span><span class="n">lst</span><span class="p">[::</span><span class="mi">2</span><span class="p">])</span>
<span class="nb">print</span><span class="p">(</span><span class="n">lst</span><span class="p">)</span>
<span class="nb">print</span><span class="p">(</span><span class="n">lst</span><span class="p">[:</span><span class="mi">4</span><span class="p">:</span><span class="mi">2</span><span class="p">])</span> <span class="c1">#同样是包头不包尾</span>
<span class="nb">print</span><span class="p">(</span><span class="n">lst</span><span class="p">[</span><span class="mi">1</span><span class="p">:</span><span class="mi">5</span><span class="p">:])</span>
<span class="c1">#step可以是-1，表示倒着走</span>
<span class="nb">print</span><span class="p">(</span><span class="n">lst</span><span class="p">[::</span><span class="o">-</span><span class="mi">1</span><span class="p">])</span>
<span class="nb">print</span><span class="p">(</span><span class="n">lst</span><span class="p">[</span><span class="mi">8</span><span class="p">:</span><span class="mi">0</span><span class="p">:</span><span class="o">-</span><span class="mi">2</span><span class="p">])</span>
<span class="nb">print</span><span class="p">(</span><span class="n">lst</span><span class="p">[</span><span class="o">-</span><span class="mi">2</span><span class="p">::</span><span class="o">-</span><span class="mi">2</span><span class="p">])</span>
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<pre>[10, 11, 12, 13, 14, 15, 16, 17, 18, 19]
[10, 12, 14, 16, 18]
[10, 11, 12, 13, 14, 15, 16, 17, 18, 19]
[10, 12]
[11, 12, 13, 14]
[19, 18, 17, 16, 15, 14, 13, 12, 11, 10]
[18, 16, 14, 12]
[18, 16, 14, 12, 10]
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<div class="jp-InputPrompt jp-InputArea-prompt">In [70]:</div>
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<div class="highlight hl-ipython3"><pre><span></span><span class="n">lst</span> <span class="o">=</span> <span class="nb">list</span><span class="p">(</span><span class="nb">range</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span><span class="mi">11</span><span class="p">))</span>
<span class="nb">print</span><span class="p">(</span><span class="n">lst</span><span class="p">)</span>
<span class="c1">#取出偶数下标的元素</span>
<span class="nb">print</span><span class="p">(</span><span class="n">lst</span><span class="p">[::</span><span class="mi">2</span><span class="p">])</span>
<span class="c1">#反转字符串</span>
<span class="nb">print</span><span class="p">(</span><span class="n">lst</span><span class="p">[::</span><span class="o">-</span><span class="mi">1</span><span class="p">])</span>
<span class="c1">#隔两个取一位</span>
<span class="nb">print</span><span class="p">(</span><span class="n">lst</span><span class="p">[::</span><span class="mi">3</span><span class="p">])</span>
<span class="c1">#倒序偶数位</span>
<span class="nb">print</span><span class="p">(</span><span class="n">lst</span><span class="p">[</span><span class="o">-</span><span class="mi">2</span><span class="p">::</span><span class="o">-</span><span class="mi">2</span><span class="p">])</span>
<span class="c1">#列表中提取奇数位元素并且反向输出</span>
<span class="nb">print</span><span class="p">(</span><span class="n">lst</span><span class="p">[</span><span class="mi">1</span><span class="p">::</span><span class="mi">2</span><span class="p">][::</span><span class="o">-</span><span class="mi">1</span><span class="p">])</span>
<span class="c1">#奇数和偶数交换</span>
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<pre>[0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
[0, 2, 4, 6, 8, 10]
[10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0]
[0, 3, 6, 9]
[9, 7, 5, 3, 1]
[9, 7, 5, 3, 1]
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<h4 id="4.1.4%E3%80%81%E5%88%97%E8%A1%A8%E7%9A%84%E5%9F%BA%E6%9C%AC%E6%93%8D%E4%BD%9C">4.1.4、列表的基本操作<a class="anchor-link" href="#4.1.4%E3%80%81%E5%88%97%E8%A1%A8%E7%9A%84%E5%9F%BA%E6%9C%AC%E6%93%8D%E4%BD%9C">¶</a></h4>
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<div class="jp-InputPrompt jp-InputArea-prompt">In [5]:</div>
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<div class="highlight hl-ipython3"><pre><span></span><span class="n">lst</span> <span class="o">=</span> <span class="nb">list</span><span class="p">(</span><span class="nb">range</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span><span class="mi">10</span><span class="p">))</span>
<span class="nb">print</span><span class="p">(</span><span class="nb">id</span><span class="p">(</span><span class="n">lst</span><span class="p">),</span><span class="n">lst</span><span class="p">,</span><span class="nb">type</span><span class="p">(</span><span class="n">lst</span><span class="p">))</span>
<span class="nb">print</span><span class="p">(</span><span class="n">lst</span><span class="p">[</span><span class="mi">0</span><span class="p">])</span>
<span class="n">lst</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="mi">999</span><span class="p">)</span>
<span class="nb">print</span><span class="p">(</span><span class="n">lst</span><span class="p">,</span><span class="nb">id</span><span class="p">(</span><span class="n">lst</span><span class="p">))</span>
<span class="n">a</span> <span class="o">=</span> <span class="mi">10</span>
<span class="n">b</span> <span class="o">=</span> <span class="n">a</span>
<span class="n">a</span> <span class="o">=</span> <span class="mi">20</span>
<span class="nb">print</span><span class="p">(</span><span class="nb">id</span><span class="p">(</span><span class="n">a</span><span class="p">),</span><span class="nb">id</span><span class="p">(</span><span class="n">b</span><span class="p">))</span>
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<pre>3130100424768 [1, 2, 3, 4, 5, 6, 7, 8, 9] &lt;class 'list'&gt;
1
[1, 2, 3, 4, 5, 6, 7, 8, 9, 999] 3130100424768
3129994800016 3129994799696
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<div class="jp-InputPrompt jp-InputArea-prompt">In [11]:</div>
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<div class="highlight hl-ipython3"><pre><span></span><span class="n">lst</span> <span class="o">=</span> <span class="p">[</span><span class="s1">'a'</span><span class="p">,</span><span class="s1">'b'</span><span class="p">,</span><span class="s1">'c'</span><span class="p">,</span><span class="s1">'d'</span><span class="p">,</span><span class="s1">'e'</span><span class="p">,</span><span class="s1">'f'</span><span class="p">,</span><span class="s1">'g'</span><span class="p">]</span>
<span class="n">lst</span><span class="o">.</span><span class="n">pop</span><span class="p">()</span> <span class="c1">#删除最后一个元素</span>
<span class="n">lst</span><span class="o">.</span><span class="n">pop</span><span class="p">(</span><span class="mi">1</span><span class="p">)</span> <span class="c1">#删除第一个元素</span>
<span class="n">lst</span><span class="o">.</span><span class="n">remove</span><span class="p">(</span><span class="s1">'c'</span><span class="p">)</span>
<span class="c1"># lst.remove3('c')#会抛异常</span>
<span class="n">lst</span>
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<pre>['a', 'd', 'e', 'f']</pre>
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<div class="jp-InputPrompt jp-InputArea-prompt">In [24]:</div>
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<div class="highlight hl-ipython3"><pre><span></span><span class="n">lst</span> <span class="o">=</span> <span class="p">[</span><span class="mi">1</span><span class="p">,</span><span class="mi">2</span><span class="p">,</span><span class="mi">3</span><span class="p">,</span><span class="mi">4</span><span class="p">]</span>
<span class="n">lst</span><span class="o">.</span><span class="n">insert</span><span class="p">(</span><span class="mi">2</span><span class="p">,</span><span class="mi">223</span><span class="p">)</span> <span class="c1">#在第二个位置插入223</span>
<span class="n">lst</span>
<span class="c1">#它是在第二个位置插入了一个数组</span>
<span class="c1"># lst.insert(2,[11,22,33])</span>
<span class="n">lst</span>
<span class="c1">#如果希望在某个位置插入相应的数组中的元素</span>
<span class="c1"># lst[2::] = [11,22,33]</span>
<span class="n">lst</span><span class="p">[</span><span class="mi">2</span><span class="p">:</span><span class="mi">2</span><span class="p">]</span> <span class="o">=</span> <span class="p">[</span><span class="mi">11</span><span class="p">,</span><span class="mi">22</span><span class="p">,</span><span class="mi">33</span><span class="p">]</span> <span class="c1">#在2的位置替换为11,22,33，变相等于插入</span>
<span class="nb">print</span><span class="p">(</span><span class="n">lst</span><span class="p">)</span>
<span class="nb">print</span><span class="p">(</span><span class="n">lst</span><span class="o">.</span><span class="n">index</span><span class="p">(</span><span class="mi">22</span><span class="p">))</span><span class="c1">#返回22这个元素的下标</span>
<span class="c1"># print(lst.index(323))#没有找到会抛出异常</span>
<span class="nb">print</span><span class="p">(</span><span class="n">lst</span><span class="p">[</span><span class="o">-</span><span class="mi">2</span><span class="p">])</span><span class="c1">#倒着找第二位</span>
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<pre>[1, 2, 11, 22, 33, 223, 3, 4]
3
3
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<div class="jp-InputPrompt jp-InputArea-prompt">In [33]:</div>
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<div class="highlight hl-ipython3"><pre><span></span><span class="n">lst</span> <span class="o">=</span> <span class="p">[</span><span class="mi">23</span><span class="p">,</span><span class="mi">4</span><span class="p">,</span><span class="mi">1</span><span class="p">,</span><span class="mi">23</span><span class="p">,</span><span class="mi">21</span><span class="p">,</span><span class="mi">51</span><span class="p">,</span><span class="mi">2</span><span class="p">]</span>
<span class="c1"># lst.sort()</span>
<span class="nb">print</span><span class="p">(</span><span class="nb">id</span><span class="p">(</span><span class="n">lst</span><span class="p">))</span>
<span class="n">lst</span><span class="o">.</span><span class="n">sort</span><span class="p">(</span><span class="n">reverse</span><span class="o">=</span><span class="kc">True</span><span class="p">)</span><span class="c1">#倒序</span>
<span class="nb">print</span><span class="p">(</span><span class="n">lst</span><span class="p">,</span><span class="nb">id</span><span class="p">(</span><span class="n">lst</span><span class="p">))</span><span class="c1">#是在列表本身上面进行排序</span>
<span class="n">lst2</span> <span class="o">=</span> <span class="p">[</span><span class="mi">42</span><span class="p">,</span><span class="mi">1</span><span class="p">,</span><span class="mi">51</span><span class="p">,</span><span class="mi">1</span><span class="p">,</span><span class="mi">4</span><span class="p">,</span><span class="mi">42</span><span class="p">,</span><span class="mi">12</span><span class="p">]</span>
<span class="n">lst2_s</span> <span class="o">=</span> <span class="nb">sorted</span><span class="p">(</span><span class="n">lst2</span><span class="p">)</span> <span class="c1">#sorted会排序之后生成一个新的列表</span>
<span class="nb">print</span><span class="p">(</span><span class="n">lst2_s</span><span class="p">,</span><span class="nb">id</span><span class="p">(</span><span class="n">lst2_s</span><span class="p">),</span><span class="nb">id</span><span class="p">(</span><span class="n">lst2</span><span class="p">))</span>
<span class="nb">print</span><span class="p">(</span><span class="mi">22</span> <span class="ow">in</span> <span class="n">lst</span><span class="p">)</span><span class="c1">#判断22有没有在lst中</span>
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<pre>3130108987328
[51, 23, 23, 21, 4, 2, 1] 3130108987328
[1, 1, 4, 12, 42, 42, 51] 3130107218624 3130108574656
False
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<h3 id="4.2%E3%80%81%E5%AD%97%E5%85%B8%E6%93%8D%E4%BD%9C">4.2、字典操作<a class="anchor-link" href="#4.2%E3%80%81%E5%AD%97%E5%85%B8%E6%93%8D%E4%BD%9C">¶</a></h3><h4 id="4.2.1%E3%80%81%E5%AD%97%E5%85%B8%E5%9F%BA%E7%A1%80">4.2.1、字典基础<a class="anchor-link" href="#4.2.1%E3%80%81%E5%AD%97%E5%85%B8%E5%9F%BA%E7%A1%80">¶</a></h4>
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<div class="jp-InputPrompt jp-InputArea-prompt">In [36]:</div>
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<div class="highlight hl-ipython3"><pre><span></span><span class="n">d</span> <span class="o">=</span> <span class="p">{</span><span class="s2">"a"</span><span class="p">:</span><span class="mi">10</span><span class="p">,</span><span class="s2">"b"</span><span class="p">:</span><span class="mi">20</span><span class="p">}</span>
<span class="n">d</span><span class="p">[</span><span class="s2">"a"</span><span class="p">]</span>
<span class="n">d</span><span class="p">[</span><span class="s2">"d"</span><span class="p">]</span> <span class="o">=</span> <span class="mi">50</span> <span class="c1">#会插入一个d值为50</span>
<span class="n">d</span>
<span class="n">d</span><span class="p">[</span><span class="s2">"b"</span><span class="p">]</span> <span class="o">=</span> <span class="mi">30</span> <span class="c1">#如果存在不会插入，会修改</span>
<span class="n">d</span>
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<pre>{'a': 10, 'b': 30, 'd': 50}</pre>
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<h4 id="4.2.2%E3%80%81%E5%AD%97%E5%85%B8%E7%9A%84%E5%B8%B8%E7%94%A8%E6%93%8D%E4%BD%9C">4.2.2、字典的常用操作<a class="anchor-link" href="#4.2.2%E3%80%81%E5%AD%97%E5%85%B8%E7%9A%84%E5%B8%B8%E7%94%A8%E6%93%8D%E4%BD%9C">¶</a></h4>
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<div class="jp-InputPrompt jp-InputArea-prompt">In [43]:</div>
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<div class="highlight hl-ipython3"><pre><span></span><span class="n">d</span> <span class="o">=</span> <span class="p">{</span><span class="s2">"a"</span><span class="p">:</span><span class="mi">10</span><span class="p">,</span><span class="s2">"b"</span><span class="p">:</span><span class="mi">20</span><span class="p">,</span><span class="s2">"c"</span><span class="p">:</span><span class="mi">30</span><span class="p">}</span>
<span class="nb">print</span><span class="p">(</span><span class="s2">"a"</span> <span class="ow">in</span> <span class="n">d</span><span class="p">)</span> <span class="c1">#判断a是不是字典的键</span>
<span class="nb">print</span><span class="p">(</span><span class="s2">"aa"</span> <span class="ow">in</span> <span class="n">d</span><span class="p">)</span><span class="c1">#不存在的话会输出False</span>
<span class="n">x</span> <span class="o">=</span> <span class="n">d</span><span class="o">.</span><span class="n">pop</span><span class="p">(</span><span class="s2">"a"</span><span class="p">)</span><span class="c1">#删除一个元素并且返回值</span>
<span class="nb">print</span><span class="p">(</span><span class="n">x</span><span class="p">)</span> <span class="c1">#x=10</span>
<span class="n">d</span>
<span class="c1"># d.pop()#字典的pop必须有删除的元素</span>
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<pre>True
False
10
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<pre>{'b': 20, 'c': 30}</pre>
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<div class="highlight hl-ipython3"><pre><span></span><span class="n">stu</span> <span class="o">=</span> <span class="p">{</span><span class="s2">"no"</span><span class="p">:</span><span class="s2">"1001"</span><span class="p">,</span><span class="s2">"name"</span><span class="p">:</span><span class="s2">"小明"</span><span class="p">,</span><span class="s2">"age"</span><span class="p">:</span><span class="mi">15</span><span class="p">}</span>
<span class="n">stu</span><span class="p">[</span><span class="s1">'name'</span><span class="p">]</span>
<span class="n">stus</span> <span class="o">=</span> <span class="p">[</span>
    <span class="p">{</span><span class="s2">"no"</span><span class="p">:</span><span class="s2">"1001"</span><span class="p">,</span><span class="s2">"name"</span><span class="p">:</span><span class="s2">"小明"</span><span class="p">,</span><span class="s2">"age"</span><span class="p">:</span><span class="mi">22</span><span class="p">},</span>
    <span class="p">{</span><span class="s2">"no"</span><span class="p">:</span><span class="s2">"1002"</span><span class="p">,</span><span class="s2">"name"</span><span class="p">:</span><span class="s2">"小王"</span><span class="p">,</span><span class="s2">"age"</span><span class="p">:</span><span class="mi">21</span><span class="p">},</span>
    <span class="p">{</span><span class="s2">"no"</span><span class="p">:</span><span class="s2">"1003"</span><span class="p">,</span><span class="s2">"name"</span><span class="p">:</span><span class="s2">"小赵"</span><span class="p">,</span><span class="s2">"age"</span><span class="p">:</span><span class="mi">21</span><span class="p">},</span>
<span class="p">]</span>
<span class="c1"># for stu in stus:</span>
<span class="c1">#     print(f"no:{stu['no']},name:{stu['name']},age:{stu['age']}")</span>
<span class="n">format_title</span> <span class="o">=</span> <span class="s2">"</span><span class="si">{:&lt;8}{:&lt;8}{:&lt;6}</span><span class="s2">"</span>
<span class="n">format_data</span> <span class="o">=</span> <span class="s2">"</span><span class="si">{:&lt;10}{:&lt;8}{:&lt;6}</span><span class="s2">"</span>
<span class="nb">print</span><span class="p">(</span><span class="n">format_title</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="s2">"学号"</span><span class="p">,</span><span class="s2">"姓名"</span><span class="p">,</span><span class="s2">"年龄"</span><span class="p">))</span>
<span class="k">for</span> <span class="n">stu</span> <span class="ow">in</span> <span class="n">stus</span><span class="p">:</span>
    <span class="nb">print</span><span class="p">(</span><span class="n">format_data</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="n">stu</span><span class="p">[</span><span class="s1">'no'</span><span class="p">],</span><span class="n">stu</span><span class="p">[</span><span class="s1">'name'</span><span class="p">],</span><span class="n">stu</span><span class="p">[</span><span class="s1">'age'</span><span class="p">]))</span>
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<pre>学号      姓名      年龄    
1001      小明      22    
1002      小王      21    
1003      小赵      21    
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<div class="jp-InputPrompt jp-InputArea-prompt">In [50]:</div>
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<div class="highlight hl-ipython3"><pre><span></span><span class="n">s1</span> <span class="o">=</span> <span class="s2">"abc"</span>
<span class="n">s2</span> <span class="o">=</span> <span class="s2">"bcd"</span>
<span class="nb">print</span><span class="p">(</span><span class="s2">"</span><span class="si">{:&gt;10}{:&gt;10}</span><span class="s2">"</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="n">s1</span><span class="p">,</span><span class="n">s2</span><span class="p">))</span>
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<pre>       abc       bcd
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<h4 id="4.2.3%E3%80%81%E5%AD%97%E5%85%B8%E7%9A%84%E5%A2%9E%E5%88%A0%E6%94%B9%E6%9F%A5">4.2.3、字典的增删改查<a class="anchor-link" href="#4.2.3%E3%80%81%E5%AD%97%E5%85%B8%E7%9A%84%E5%A2%9E%E5%88%A0%E6%94%B9%E6%9F%A5">¶</a></h4>
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<div class="highlight hl-ipython3"><pre><span></span><span class="n">d</span> <span class="o">=</span> <span class="nb">dict</span><span class="p">()</span> <span class="c1">#创建一个字典</span>
<span class="n">d</span> <span class="o">=</span> <span class="p">{</span><span class="s2">"a"</span><span class="p">:</span><span class="mi">10</span><span class="p">,</span><span class="s1">'b'</span><span class="p">:</span><span class="mi">20</span><span class="p">}</span>
<span class="nb">print</span><span class="p">(</span><span class="n">d</span><span class="o">.</span><span class="n">keys</span><span class="p">())</span>
<span class="c1">#遍历字典</span>
<span class="k">for</span> <span class="n">key</span> <span class="ow">in</span> <span class="n">d</span><span class="o">.</span><span class="n">keys</span><span class="p">():</span>
    <span class="nb">print</span><span class="p">(</span><span class="sa">f</span><span class="s2">"</span><span class="si">{</span><span class="n">key</span><span class="si">}</span><span class="s2">:</span><span class="si">{</span><span class="n">d</span><span class="p">[</span><span class="n">key</span><span class="p">]</span><span class="si">}</span><span class="s2">"</span><span class="p">)</span>
<span class="nb">print</span><span class="p">(</span><span class="n">d</span><span class="o">.</span><span class="n">values</span><span class="p">())</span><span class="c1">#获取所有的values</span>
<span class="n">d</span><span class="o">.</span><span class="n">clear</span><span class="p">()</span> <span class="c1">#清空字典</span>
<span class="nb">print</span><span class="p">(</span><span class="n">d</span><span class="p">)</span>
<span class="n">d</span> <span class="o">=</span> <span class="p">{</span><span class="s1">'a'</span><span class="p">:</span><span class="mi">10</span><span class="p">,</span><span class="s1">'b'</span><span class="p">:</span><span class="mi">20</span><span class="p">,</span><span class="s1">'c'</span><span class="p">:</span><span class="mi">30</span><span class="p">}</span>
<span class="n">d</span><span class="p">[</span><span class="s1">'a'</span><span class="p">]</span>
<span class="n">d</span><span class="p">[</span><span class="s1">'d'</span><span class="p">]</span> <span class="o">=</span> <span class="mi">33</span>
<span class="c1"># d['d']#如果没有这个元素会抛出异常</span>
<span class="nb">print</span><span class="p">(</span><span class="n">d</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">'d'</span><span class="p">))</span> <span class="c1">#获取字典的元素使用get方法，如果没有会输出None</span>
<span class="k">if</span> <span class="n">d</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">'d'</span><span class="p">):</span>
    <span class="nb">print</span><span class="p">(</span><span class="n">d</span><span class="p">[</span><span class="s1">'d'</span><span class="p">])</span>
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<pre>dict_keys(['a', 'b'])
a:10
b:20
dict_values([10, 20])
{}
33
33
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<h4 id="4.2.4%E3%80%81%E5%AD%97%E5%85%B8%E7%94%9F%E6%88%90%E5%BC%8F">4.2.4、字典生成式<a class="anchor-link" href="#4.2.4%E3%80%81%E5%AD%97%E5%85%B8%E7%94%9F%E6%88%90%E5%BC%8F">¶</a></h4>
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<div class="jp-InputPrompt jp-InputArea-prompt">In [77]:</div>
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<div class="highlight hl-ipython3"><pre><span></span><span class="n">lst1</span> <span class="o">=</span> <span class="p">[</span><span class="s1">'a'</span><span class="p">,</span><span class="s1">'b'</span><span class="p">,</span><span class="s1">'c'</span><span class="p">,</span><span class="s1">'d'</span><span class="p">]</span>
<span class="n">lst2</span> <span class="o">=</span> <span class="p">[</span><span class="mi">11</span><span class="p">,</span><span class="mi">22</span><span class="p">,</span><span class="mi">33</span><span class="p">,</span><span class="mi">55</span><span class="p">]</span>
<span class="n">lst3</span> <span class="o">=</span> <span class="p">[</span><span class="mi">12</span><span class="p">,</span><span class="mi">3</span><span class="p">,</span><span class="mi">4</span><span class="p">,</span><span class="mi">3</span><span class="p">]</span>
<span class="c1">#zip会把列表的元素添加成为元组</span>
<span class="c1"># for t in zip(lst1,lst2,lst3):</span>
<span class="c1">#     print(t)</span>
<span class="n">d</span> <span class="o">=</span> <span class="p">{</span><span class="n">k</span><span class="p">:(</span><span class="n">v</span> <span class="k">if</span> <span class="n">v</span><span class="o">%</span><span class="k">2</span>==0 else 0) for k,v in zip(lst1,lst2)}
<span class="nb">print</span><span class="p">(</span><span class="n">d</span><span class="p">)</span>
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<pre>{'a': 0, 'b': 22, 'c': 0, 'd': 0}
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<h3 id="4.3%E3%80%81%E5%85%83%E7%BB%84">4.3、元组<a class="anchor-link" href="#4.3%E3%80%81%E5%85%83%E7%BB%84">¶</a></h3><p>元组类似于列表，区别就是元组是不可变类型，用（）来创建，方法少，效率特别高</p>
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<div class="jp-InputPrompt jp-InputArea-prompt">In [32]:</div>
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<div class="highlight hl-ipython3"><pre><span></span><span class="n">t</span> <span class="o">=</span> <span class="p">(</span><span class="mi">1</span><span class="p">,</span><span class="mi">2</span><span class="p">,</span><span class="mi">3</span><span class="p">)</span>
<span class="nb">print</span><span class="p">(</span><span class="nb">id</span><span class="p">(</span><span class="n">t</span><span class="p">),</span><span class="nb">type</span><span class="p">(</span><span class="n">t</span><span class="p">),</span><span class="n">t</span><span class="p">)</span>
<span class="n">lst</span> <span class="o">=</span> <span class="p">[</span><span class="mi">1</span><span class="p">,</span><span class="mi">2</span><span class="p">,</span><span class="mi">3</span><span class="p">]</span>
<span class="n">lst</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="mi">12</span><span class="p">)</span>
<span class="n">lst</span>
<span class="n">lst</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">=</span> <span class="mi">12</span>
<span class="n">lst</span>
<span class="c1"># t[0] = 11#会报错，元组不支持修改功能</span>
<span class="n">t1</span> <span class="o">=</span> <span class="p">(</span><span class="mi">12</span><span class="p">)</span> <span class="c1">#此时创建的是int类型</span>
<span class="nb">print</span><span class="p">(</span><span class="nb">type</span><span class="p">(</span><span class="n">t1</span><span class="p">))</span>
<span class="c1">#如果希望创建一个元素的元组需要用下面方式</span>
<span class="n">t2</span> <span class="o">=</span> <span class="p">(</span><span class="mi">12</span><span class="p">,)</span> <span class="c1">#在一个元素之后加个,就是元组</span>
<span class="nb">print</span><span class="p">(</span><span class="nb">id</span><span class="p">(</span><span class="n">t2</span><span class="p">),</span><span class="nb">type</span><span class="p">(</span><span class="n">t2</span><span class="p">),</span><span class="n">t2</span><span class="p">)</span>

<span class="c1">#元组生成式</span>
<span class="n">t3</span> <span class="o">=</span> <span class="nb">tuple</span><span class="p">(</span><span class="n">a</span> <span class="k">for</span> <span class="n">a</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="mi">100</span><span class="p">))</span>
<span class="nb">print</span><span class="p">(</span><span class="n">t3</span><span class="p">)</span>
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<pre>1926603912576 &lt;class 'tuple'&gt; (1, 2, 3)
&lt;class 'int'&gt;
1926540256880 &lt;class 'tuple'&gt; (12,)
(0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99)
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<div class="highlight hl-ipython3"><pre><span></span><span class="n">lst1</span> <span class="o">=</span> <span class="p">[</span><span class="s1">'a'</span><span class="p">,</span><span class="s1">'b'</span><span class="p">,</span><span class="s1">'c'</span><span class="p">,</span><span class="s1">'d'</span><span class="p">]</span>
<span class="n">lst2</span> <span class="o">=</span> <span class="p">[</span><span class="mi">11</span><span class="p">,</span><span class="mi">22</span><span class="p">,</span><span class="mi">33</span><span class="p">,</span><span class="mi">44</span><span class="p">]</span>
<span class="n">lst3</span> <span class="o">=</span> <span class="p">[</span><span class="s1">'haha'</span><span class="p">,</span><span class="s1">'huhu'</span><span class="p">,</span><span class="s1">'hehe'</span><span class="p">,</span><span class="s1">'yeah'</span><span class="p">]</span>

<span class="n">tt</span> <span class="o">=</span> <span class="nb">zip</span><span class="p">(</span><span class="n">lst1</span><span class="p">,</span><span class="n">lst2</span><span class="p">,</span><span class="n">lst3</span><span class="p">)</span>
<span class="nb">print</span><span class="p">(</span><span class="nb">id</span><span class="p">(</span><span class="n">tt</span><span class="p">),</span><span class="nb">type</span><span class="p">(</span><span class="n">tt</span><span class="p">),</span><span class="n">tt</span><span class="p">)</span>
<span class="c1">#zip是迭代器，迭代一次之后就会到最后的位置，不能继续遍历</span>
<span class="c1"># for t in tt:</span>
<span class="c1">#     print(t)</span>
<span class="k">for</span> <span class="n">a</span><span class="p">,</span><span class="n">b</span><span class="p">,</span><span class="n">c</span> <span class="ow">in</span> <span class="n">tt</span><span class="p">:</span>
    <span class="nb">print</span><span class="p">(</span><span class="n">a</span><span class="p">,</span><span class="n">b</span><span class="p">,</span><span class="n">c</span><span class="p">)</span>
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<pre>1926588509312 &lt;class 'zip'&gt; &lt;zip object at 0x000001C0919FAC80&gt;
a 11 haha
b 22 huhu
c 33 hehe
d 44 yeah
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<h3 id="4.4%E3%80%81%E9%9B%86%E5%90%88">4.4、集合<a class="anchor-link" href="#4.4%E3%80%81%E9%9B%86%E5%90%88">¶</a></h3><p>集合相当于java中set</p>
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<div class="jp-InputPrompt jp-InputArea-prompt">In [33]:</div>
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<div class="highlight hl-ipython3"><pre><span></span><span class="n">s</span> <span class="o">=</span> <span class="p">{</span><span class="mi">10</span><span class="p">,</span><span class="mi">30</span><span class="p">,</span><span class="mi">50</span><span class="p">,</span><span class="mi">50</span><span class="p">,</span><span class="mi">20</span><span class="p">}</span>
<span class="nb">print</span><span class="p">(</span><span class="n">s</span><span class="p">,</span><span class="nb">id</span><span class="p">(</span><span class="n">s</span><span class="p">),</span><span class="nb">type</span><span class="p">(</span><span class="n">s</span><span class="p">))</span>
<span class="n">s</span><span class="o">.</span><span class="n">add</span><span class="p">(</span><span class="mi">1212</span><span class="p">)</span>
<span class="n">s</span>
<span class="n">s</span><span class="o">.</span><span class="n">remove</span><span class="p">(</span><span class="mi">1212</span><span class="p">)</span>
<span class="n">s</span>
<span class="c1"># s.remove(1212) #删除不存在的会报错</span>
<span class="n">s</span><span class="o">.</span><span class="n">discard</span><span class="p">(</span><span class="mi">1212</span><span class="p">)</span> <span class="c1">#使用discard，删除不存在的不会报错</span>
<span class="n">s</span><span class="o">.</span><span class="n">discard</span><span class="p">(</span><span class="mi">10</span><span class="p">)</span>
<span class="n">s</span>
<span class="n">s1</span> <span class="o">=</span> <span class="p">{</span><span class="mi">10</span><span class="p">,</span><span class="mi">20</span><span class="p">,</span><span class="mi">30</span><span class="p">,</span><span class="mi">40</span><span class="p">}</span>
<span class="n">s2</span> <span class="o">=</span> <span class="p">{</span><span class="mi">20</span><span class="p">,</span><span class="mi">10</span><span class="p">,</span><span class="mi">30</span><span class="p">,</span><span class="mi">40</span><span class="p">}</span>
<span class="nb">print</span><span class="p">(</span><span class="n">s1</span><span class="p">,</span><span class="n">s2</span><span class="p">,</span><span class="nb">id</span><span class="p">(</span><span class="n">s1</span><span class="p">),</span><span class="nb">id</span><span class="p">(</span><span class="n">s2</span><span class="p">))</span>

<span class="c1">#集合生成式 s3 = set(x for x in range(xx))</span>
<span class="n">s3</span> <span class="o">=</span> <span class="p">{</span><span class="n">t</span> <span class="k">for</span> <span class="n">t</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="mi">12</span><span class="p">)}</span>
<span class="nb">print</span><span class="p">(</span><span class="n">s3</span><span class="p">)</span>
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<pre>{10, 50, 20, 30} 1926593120064 &lt;class 'set'&gt;
{40, 10, 20, 30} {40, 10, 20, 30} 1926598478752 1926598479200
{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11}
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<div class="jp-InputPrompt jp-InputArea-prompt">In [22]:</div>
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<div class="highlight hl-ipython3"><pre><span></span><span class="n">s1</span> <span class="o">=</span> <span class="p">{</span><span class="mi">10</span><span class="p">,</span><span class="mi">20</span><span class="p">,</span><span class="mi">30</span><span class="p">}</span>
<span class="n">s2</span> <span class="o">=</span> <span class="p">{</span><span class="mi">10</span><span class="p">,</span><span class="mi">30</span><span class="p">,</span><span class="mi">20</span><span class="p">,</span><span class="mi">50</span><span class="p">}</span>
<span class="nb">print</span><span class="p">(</span><span class="n">s1</span><span class="o">.</span><span class="n">issubset</span><span class="p">(</span><span class="n">s2</span><span class="p">))</span><span class="c1">#s1是不是s2的子集</span>
<span class="nb">print</span><span class="p">(</span><span class="n">s2</span><span class="o">.</span><span class="n">issuperset</span><span class="p">(</span><span class="n">s1</span><span class="p">))</span><span class="c1">#s2是不是s1的父集</span>
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<pre>True
True
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<div class="highlight hl-ipython3"><pre><span></span><span class="n">s1</span> <span class="o">=</span> <span class="p">{</span><span class="mi">1</span><span class="p">,</span><span class="mi">2</span><span class="p">,</span><span class="mi">10</span><span class="p">,</span><span class="mi">20</span><span class="p">,</span><span class="mi">50</span><span class="p">}</span>
<span class="n">s2</span> <span class="o">=</span> <span class="p">{</span><span class="mi">22</span><span class="p">,</span><span class="mi">10</span><span class="p">,</span><span class="mi">15</span><span class="p">,</span><span class="mi">1</span><span class="p">,</span><span class="mi">2</span><span class="p">}</span>
<span class="nb">print</span><span class="p">(</span><span class="n">s1</span><span class="o">.</span><span class="n">intersection</span><span class="p">(</span><span class="n">s2</span><span class="p">))</span> <span class="c1">#求交集</span>
<span class="nb">print</span><span class="p">(</span><span class="n">s1</span> <span class="o">&amp;</span> <span class="n">s2</span><span class="p">)</span> <span class="c1">#求交集</span>
<span class="nb">print</span><span class="p">(</span><span class="n">s1</span> <span class="o">|</span> <span class="n">s2</span><span class="p">)</span> <span class="c1">#求并集</span>
<span class="nb">print</span><span class="p">(</span><span class="n">s1</span><span class="o">.</span><span class="n">union</span><span class="p">(</span><span class="n">s2</span><span class="p">))</span>
<span class="nb">print</span><span class="p">(</span><span class="n">s1</span><span class="o">-</span><span class="n">s2</span><span class="p">)</span>
<span class="nb">print</span><span class="p">(</span><span class="n">s2</span><span class="o">-</span><span class="n">s1</span><span class="p">)</span><span class="c1">#求差集</span>
<span class="nb">print</span><span class="p">(</span><span class="n">s1</span><span class="o">.</span><span class="n">difference</span><span class="p">(</span><span class="n">s2</span><span class="p">))</span><span class="c1">#相当于s1-s2</span>
<span class="nb">print</span><span class="p">(</span><span class="n">s1</span><span class="o">.</span><span class="n">symmetric_difference</span><span class="p">(</span><span class="n">s2</span><span class="p">))</span> <span class="c1">#对称差，两个集合求差集之后再求并集</span>
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<pre>{1, 2, 10}
{1, 2, 10}
{1, 2, 10, 15, 50, 20, 22}
{1, 2, 10, 15, 50, 20, 22}
{50, 20}
{22, 15}
{50, 20}
{50, 20, 22, 15}
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<h2 id="5%E3%80%81%E5%87%BD%E6%95%B0">5、函数<a class="anchor-link" href="#5%E3%80%81%E5%87%BD%E6%95%B0">¶</a></h2><h3 id="5.1%E3%80%81%E5%87%BD%E6%95%B0%E5%9F%BA%E7%A1%80">5.1、函数基础<a class="anchor-link" href="#5.1%E3%80%81%E5%87%BD%E6%95%B0%E5%9F%BA%E7%A1%80">¶</a></h3>
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<div class="highlight hl-ipython3"><pre><span></span><span class="k">def</span><span class="w"> </span><span class="nf">add</span><span class="p">(</span><span class="n">a</span><span class="p">,</span><span class="n">b</span><span class="p">):</span>
    <span class="k">return</span> <span class="n">a</span><span class="o">+</span><span class="n">b</span>
<span class="nb">print</span><span class="p">(</span><span class="n">add</span><span class="p">(</span><span class="mi">12</span><span class="p">,</span><span class="mi">22</span><span class="p">))</span>
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<pre>34
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<div class="highlight hl-ipython3"><pre><span></span><span class="k">def</span><span class="w"> </span><span class="nf">swap</span><span class="p">(</span><span class="n">a</span><span class="p">,</span><span class="n">b</span><span class="p">):</span>
    <span class="n">a</span><span class="p">,</span><span class="n">b</span> <span class="o">=</span> <span class="n">b</span><span class="p">,</span><span class="n">a</span>
<span class="n">x1</span> <span class="o">=</span> <span class="mi">10</span>
<span class="n">x2</span> <span class="o">=</span> <span class="mi">20</span>
<span class="n">swap</span><span class="p">(</span><span class="n">x1</span><span class="p">,</span><span class="n">x2</span><span class="p">)</span>
<span class="nb">print</span><span class="p">(</span><span class="n">x1</span><span class="p">,</span><span class="n">x2</span><span class="p">)</span>
<span class="k">def</span><span class="w"> </span><span class="nf">swap</span><span class="p">(</span><span class="n">a</span><span class="p">):</span>
    <span class="n">a</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span><span class="n">a</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span> <span class="o">=</span> <span class="n">a</span><span class="p">[</span><span class="mi">1</span><span class="p">],</span><span class="n">a</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
<span class="n">lst</span> <span class="o">=</span> <span class="p">[</span><span class="mi">1</span><span class="p">,</span><span class="mi">2</span><span class="p">]</span>
<span class="n">swap</span><span class="p">(</span><span class="n">lst</span><span class="p">)</span>
<span class="nb">print</span><span class="p">(</span><span class="n">lst</span><span class="p">)</span>
<span class="k">def</span><span class="w"> </span><span class="nf">f</span><span class="p">(</span><span class="n">a</span><span class="p">):</span>
    <span class="n">a</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="mi">12</span><span class="p">)</span>
<span class="n">f</span><span class="p">(</span><span class="n">lst</span><span class="p">)</span> <span class="c1">#lst是个可变元素，传递了指针中的值过去，所以元素会变化</span>
<span class="nb">print</span><span class="p">(</span><span class="n">lst</span><span class="p">)</span>
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<pre>10 20
[2, 1]
[2, 1, 12]
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<h3 id="5.2%E3%80%81%E5%87%BD%E6%95%B0%E5%8F%82%E6%95%B0%E7%9A%84%E9%BB%98%E8%AE%A4%E5%80%BC">5.2、函数参数的默认值<a class="anchor-link" href="#5.2%E3%80%81%E5%87%BD%E6%95%B0%E5%8F%82%E6%95%B0%E7%9A%84%E9%BB%98%E8%AE%A4%E5%80%BC">¶</a></h3>
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<div class="jp-InputPrompt jp-InputArea-prompt">In [46]:</div>
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<div class="highlight hl-ipython3"><pre><span></span><span class="c1">#c的默认值100</span>
<span class="k">def</span><span class="w"> </span><span class="nf">fn</span><span class="p">(</span><span class="n">a</span><span class="p">,</span><span class="n">b</span><span class="o">=</span><span class="mi">10</span><span class="p">,</span><span class="n">c</span><span class="o">=</span><span class="mi">100</span><span class="p">):</span>
    <span class="k">return</span> <span class="n">a</span><span class="o">+</span><span class="n">b</span><span class="o">+</span><span class="n">c</span>
<span class="nb">print</span><span class="p">(</span><span class="n">fn</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span><span class="mi">2</span><span class="p">,</span><span class="mi">3</span><span class="p">))</span>
<span class="c1">#有默认值的参数只能放在最后面</span>
<span class="c1"># def fn1(a=10,b,c):#会报错，有默认值的参数必须放在最后面</span>
<span class="k">def</span><span class="w"> </span><span class="nf">fn1</span><span class="p">(</span><span class="n">b</span><span class="p">,</span><span class="n">c</span><span class="p">,</span><span class="n">a</span><span class="o">=</span><span class="mi">10</span><span class="p">):</span>
    <span class="k">return</span> <span class="n">a</span><span class="o">+</span><span class="n">b</span><span class="o">+</span><span class="n">c</span>
<span class="n">fn1</span><span class="p">(</span><span class="mi">12</span><span class="p">,</span><span class="mi">13</span><span class="p">,</span><span class="mi">3</span><span class="p">)</span>
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<pre>6
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<pre>28</pre>
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<h3 id="5.3%E3%80%81%E5%87%BD%E6%95%B0%E7%9A%84%E5%88%97%E8%A1%A8%E5%92%8C%E5%AD%97%E5%85%B8%E5%8F%82%E6%95%B0">5.3、函数的列表和字典参数<a class="anchor-link" href="#5.3%E3%80%81%E5%87%BD%E6%95%B0%E7%9A%84%E5%88%97%E8%A1%A8%E5%92%8C%E5%AD%97%E5%85%B8%E5%8F%82%E6%95%B0">¶</a></h3><h4 id="5.3.1%E3%80%81%E5%87%BD%E6%95%B0%E7%9A%84%E5%88%97%E8%A1%A8%E5%8F%82%E6%95%B0">5.3.1、函数的列表参数<a class="anchor-link" href="#5.3.1%E3%80%81%E5%87%BD%E6%95%B0%E7%9A%84%E5%88%97%E8%A1%A8%E5%8F%82%E6%95%B0">¶</a></h4>
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<div class="highlight hl-ipython3"><pre><span></span><span class="k">def</span><span class="w"> </span><span class="nf">fn1</span><span class="p">(</span><span class="o">*</span><span class="n">arg</span><span class="p">):</span>
    <span class="nb">print</span><span class="p">(</span><span class="nb">id</span><span class="p">(</span><span class="n">arg</span><span class="p">),</span><span class="nb">type</span><span class="p">(</span><span class="n">arg</span><span class="p">),</span><span class="n">arg</span><span class="p">)</span>
    <span class="nb">sum</span> <span class="o">=</span> <span class="mi">0</span>
    <span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="n">arg</span><span class="p">:</span>
        <span class="nb">sum</span><span class="o">+=</span><span class="n">i</span>
    <span class="k">return</span> <span class="nb">sum</span>
<span class="n">r</span> <span class="o">=</span> <span class="n">fn1</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span><span class="mi">2</span><span class="p">,</span><span class="mi">3</span><span class="p">,</span><span class="mi">4</span><span class="p">)</span>
<span class="n">r</span>
<span class="c1">#相当于将[1,2,3,4]作为一个参数传递给函数,而列表是没有办法做加法的</span>
<span class="c1"># r = fn1([1,2,3,4])</span>
<span class="n">lst</span> <span class="o">=</span> <span class="p">[</span><span class="mi">1</span><span class="p">,</span><span class="mi">2</span><span class="p">,</span><span class="mi">34</span><span class="p">]</span>
<span class="n">r</span> <span class="o">=</span> <span class="n">fn1</span><span class="p">(</span><span class="o">*</span><span class="n">lst</span><span class="p">)</span> <span class="c1">#把列表解封为单独的参数</span>
<span class="nb">print</span><span class="p">(</span><span class="n">r</span><span class="p">)</span>
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<pre>1926604642000 &lt;class 'tuple'&gt; (1, 2, 3, 4)
1926605829952 &lt;class 'tuple'&gt; (1, 2, 34)
37
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<h3 id="5.3.2%E3%80%81%E5%AD%97%E5%85%B8%E5%8F%82%E6%95%B0">5.3.2、字典参数<a class="anchor-link" href="#5.3.2%E3%80%81%E5%AD%97%E5%85%B8%E5%8F%82%E6%95%B0">¶</a></h3>
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<div class="highlight hl-ipython3"><pre><span></span><span class="k">def</span><span class="w"> </span><span class="nf">fn2</span><span class="p">(</span><span class="o">**</span><span class="n">arg</span><span class="p">):</span>
    <span class="nb">print</span><span class="p">(</span><span class="nb">type</span><span class="p">(</span><span class="n">arg</span><span class="p">),</span><span class="n">arg</span><span class="p">)</span>
<span class="n">fn2</span><span class="p">(</span><span class="n">a</span><span class="o">=</span><span class="mi">10</span><span class="p">,</span><span class="n">b</span><span class="o">=</span><span class="mi">20</span><span class="p">,</span><span class="n">c</span><span class="o">=</span><span class="mi">30</span><span class="p">)</span>
<span class="n">d</span> <span class="o">=</span> <span class="p">{</span><span class="s2">"name"</span><span class="p">:</span><span class="s2">"张三"</span><span class="p">,</span><span class="s2">"age"</span><span class="p">:</span><span class="mi">22</span><span class="p">}</span>
<span class="c1">#如果要传字典，也要进行解封装</span>
<span class="n">fn2</span><span class="p">(</span><span class="o">**</span><span class="n">d</span><span class="p">)</span>
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<pre>&lt;class 'dict'&gt; {'a': 10, 'b': 20, 'c': 30}
&lt;class 'dict'&gt; {'name': '张三', 'age': 22}
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<div class="highlight hl-ipython3"><pre><span></span><span class="c1">#列表在前，字典在后，不能换</span>
<span class="k">def</span><span class="w"> </span><span class="nf">fn3</span><span class="p">(</span><span class="n">a</span><span class="p">,</span><span class="n">b</span><span class="p">,</span><span class="o">*</span><span class="n">a1</span><span class="p">,</span><span class="o">**</span><span class="n">a2</span><span class="p">):</span>
    <span class="nb">print</span><span class="p">(</span><span class="n">a</span><span class="p">,</span><span class="n">b</span><span class="p">,</span><span class="n">a1</span><span class="p">,</span><span class="n">a2</span><span class="p">)</span>

<span class="n">fn3</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span><span class="mi">2</span><span class="p">,</span><span class="o">*</span><span class="p">[</span><span class="mi">1</span><span class="p">,</span><span class="mi">2</span><span class="p">,</span><span class="mi">3</span><span class="p">],</span><span class="o">**</span><span class="p">{</span><span class="s1">'a1'</span><span class="p">:</span><span class="mi">10</span><span class="p">,</span><span class="s1">'b2'</span><span class="p">:</span><span class="mi">2</span><span class="p">})</span>   
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<pre>1 2 (1, 2, 3) {'a1': 10, 'b2': 2}
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<h2 id="6%E3%80%81%E9%9B%87%E5%91%98%E7%AE%A1%E7%90%86%E7%B3%BB%E7%BB%9F%E7%AC%AC%E4%B8%80%E7%89%88">6、雇员管理系统第一版<a class="anchor-link" href="#6%E3%80%81%E9%9B%87%E5%91%98%E7%AE%A1%E7%90%86%E7%B3%BB%E7%BB%9F%E7%AC%AC%E4%B8%80%E7%89%88">¶</a></h2><p>用字典来存储雇员信息{"eno":'123','name':'张三','salary':1000,'mobile':'123123123'}
所有的雇员对象存储在lst中</p>
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<div class="jp-InputPrompt jp-InputArea-prompt">In [1]:</div>
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<div class="highlight hl-ipython3"><pre><span></span><span class="n">emps</span> <span class="o">=</span> <span class="p">[]</span>
<span class="c1">#emp ={"eno":'123','name':'张三','salary':1000,'mobile':'123123123'} </span>

<span class="k">def</span><span class="w"> </span><span class="nf">show_operator</span><span class="p">():</span>
    <span class="nb">print</span><span class="p">(</span><span class="s2">"请选择一个具体的操作:添加(A)|删除(D)|更新(U)|列表(L)|退出(Q)"</span><span class="p">)</span>

<span class="k">def</span><span class="w"> </span><span class="nf">show_title</span><span class="p">():</span>
    <span class="n">format_title</span> <span class="o">=</span> <span class="s1">'</span><span class="si">{:&lt;10}{:&lt;10}{:&lt;10}{:&lt;15}</span><span class="s1">'</span>
    <span class="nb">print</span><span class="p">(</span><span class="n">format_title</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="s1">'编号'</span><span class="p">,</span><span class="s1">'姓名'</span><span class="p">,</span><span class="s1">'薪水'</span><span class="p">,</span><span class="s1">'联系电话'</span><span class="p">))</span>

<span class="k">def</span><span class="w"> </span><span class="nf">show_data</span><span class="p">(</span><span class="n">emp</span><span class="p">):</span>
    <span class="n">format_data</span> <span class="o">=</span> <span class="s1">'</span><span class="si">{:&lt;12}{:&lt;10}{:&lt;11}{:&lt;15}</span><span class="s1">'</span>
    <span class="nb">print</span><span class="p">(</span><span class="n">format_data</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="n">emp</span><span class="p">[</span><span class="s1">'eno'</span><span class="p">],</span><span class="n">emp</span><span class="p">[</span><span class="s1">'name'</span><span class="p">],</span><span class="n">emp</span><span class="p">[</span><span class="s1">'salary'</span><span class="p">],</span><span class="n">emp</span><span class="p">[</span><span class="s1">'mobile'</span><span class="p">]))</span>

<span class="k">def</span><span class="w"> </span><span class="nf">get_emp</span><span class="p">(</span><span class="n">no</span><span class="p">):</span>
    <span class="k">for</span> <span class="n">emp</span> <span class="ow">in</span> <span class="n">emps</span><span class="p">:</span>
        <span class="k">if</span> <span class="n">emp</span><span class="p">[</span><span class="s1">'eno'</span><span class="p">]</span><span class="o">==</span><span class="n">no</span><span class="p">:</span>
            <span class="k">return</span> <span class="n">emp</span> <span class="c1">#返回的是一个字典对象</span>
    <span class="k">return</span> <span class="kc">None</span>

<span class="k">def</span><span class="w"> </span><span class="nf">error_msg</span><span class="p">(</span><span class="n">msg</span><span class="p">):</span>
    <span class="nb">print</span><span class="p">(</span><span class="s2">"*********************************************"</span><span class="p">,</span><span class="n">end</span><span class="o">=</span><span class="s1">''</span><span class="p">)</span>
    <span class="nb">print</span><span class="p">(</span><span class="sa">f</span><span class="s1">'</span><span class="si">{</span><span class="n">msg</span><span class="si">}</span><span class="s1">'</span><span class="p">,</span><span class="n">end</span><span class="o">=</span><span class="s1">''</span><span class="p">)</span>
    <span class="nb">print</span><span class="p">(</span><span class="s2">"*********************************************"</span><span class="p">)</span>

<span class="k">def</span><span class="w"> </span><span class="nf">suc_msg</span><span class="p">(</span><span class="n">msg</span><span class="p">):</span>
    <span class="nb">print</span><span class="p">(</span><span class="s2">"----------------------------------------------------&gt;"</span><span class="p">,</span><span class="n">end</span><span class="o">=</span><span class="s1">''</span><span class="p">)</span>
    <span class="nb">print</span><span class="p">(</span><span class="sa">f</span><span class="s2">"</span><span class="si">{</span><span class="n">msg</span><span class="si">}</span><span class="s2">"</span><span class="p">,</span><span class="n">end</span><span class="o">=</span><span class="s1">''</span><span class="p">)</span>
    <span class="nb">print</span><span class="p">(</span><span class="s2">"&lt;----------------------------------------------------"</span><span class="p">)</span>

<span class="k">def</span><span class="w"> </span><span class="nf">add_emp</span><span class="p">():</span>
    <span class="n">no</span> <span class="o">=</span> <span class="nb">input</span><span class="p">(</span><span class="s2">"请输入员工编号:"</span><span class="p">)</span>
    <span class="n">emp</span> <span class="o">=</span> <span class="n">get_emp</span><span class="p">(</span><span class="n">no</span><span class="p">)</span>
    <span class="c1"># print(not emp)</span>
    <span class="k">if</span> <span class="n">emp</span><span class="o">!=</span><span class="kc">None</span><span class="p">:</span>
        <span class="n">error_msg</span><span class="p">(</span><span class="s1">'添加的员工已经存在，不能添加!'</span><span class="p">)</span>
        <span class="k">return</span>
    <span class="n">name</span> <span class="o">=</span> <span class="nb">input</span><span class="p">(</span><span class="s2">"请输入员工姓名:"</span><span class="p">)</span>
    <span class="n">salary</span> <span class="o">=</span> <span class="nb">int</span><span class="p">(</span><span class="nb">input</span><span class="p">(</span><span class="s2">"请输入薪水:"</span><span class="p">))</span>
    <span class="n">mobile</span> <span class="o">=</span> <span class="nb">input</span><span class="p">(</span><span class="s2">"请输入手机号:"</span><span class="p">)</span>
    <span class="n">emp</span> <span class="o">=</span> <span class="p">{}</span>
    <span class="n">emp</span><span class="p">[</span><span class="s1">'eno'</span><span class="p">]</span> <span class="o">=</span> <span class="n">no</span>
    <span class="n">emp</span><span class="p">[</span><span class="s1">'name'</span><span class="p">]</span> <span class="o">=</span> <span class="n">name</span>
    <span class="n">emp</span><span class="p">[</span><span class="s1">'salary'</span><span class="p">]</span> <span class="o">=</span> <span class="n">salary</span>
    <span class="n">emp</span><span class="p">[</span><span class="s1">'mobile'</span><span class="p">]</span> <span class="o">=</span> <span class="n">mobile</span>
    <span class="n">emps</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">emp</span><span class="p">)</span>
    <span class="n">suc_msg</span><span class="p">(</span><span class="s2">"添加员工成功"</span><span class="p">)</span>

<span class="k">def</span><span class="w"> </span><span class="nf">list_emp</span><span class="p">():</span>
    <span class="n">show_title</span><span class="p">()</span>
    <span class="k">for</span> <span class="n">emp</span> <span class="ow">in</span> <span class="n">emps</span><span class="p">:</span>
        <span class="n">show_data</span><span class="p">(</span><span class="n">emp</span><span class="p">)</span>

<span class="k">def</span><span class="w"> </span><span class="nf">del_emp</span><span class="p">():</span>
    <span class="n">no</span> <span class="o">=</span> <span class="nb">input</span><span class="p">(</span><span class="s2">"请输入删除的员工号:"</span><span class="p">)</span>
    <span class="n">emp</span> <span class="o">=</span> <span class="n">get_emp</span><span class="p">(</span><span class="n">no</span><span class="p">)</span>
    <span class="k">if</span> <span class="n">emp</span><span class="o">==</span><span class="kc">None</span><span class="p">:</span>
        <span class="n">error_msg</span><span class="p">(</span><span class="s2">"删除的员工不存在!"</span><span class="p">)</span>
        <span class="k">return</span>
    <span class="n">emps</span><span class="o">.</span><span class="n">remove</span><span class="p">(</span><span class="n">emp</span><span class="p">)</span>
    <span class="n">suc_msg</span><span class="p">(</span><span class="s2">"删除员工成功！"</span><span class="p">)</span>

<span class="k">def</span><span class="w"> </span><span class="nf">update_emp</span><span class="p">():</span>
    <span class="n">no</span> <span class="o">=</span> <span class="nb">input</span><span class="p">(</span><span class="s2">"请输入员工编号:"</span><span class="p">)</span>
    <span class="n">emp</span> <span class="o">=</span> <span class="n">get_emp</span><span class="p">(</span><span class="n">no</span><span class="p">)</span>
    <span class="k">if</span> <span class="n">emp</span><span class="o">==</span><span class="kc">None</span><span class="p">:</span>
        <span class="n">error_msg</span><span class="p">(</span><span class="s2">"更新的员工不存在!"</span><span class="p">)</span>
        <span class="k">return</span>
    <span class="n">name</span> <span class="o">=</span> <span class="nb">input</span><span class="p">(</span><span class="sa">f</span><span class="s2">"请输入更新的姓名(</span><span class="si">{</span><span class="n">emp</span><span class="p">[</span><span class="s1">'name'</span><span class="p">]</span><span class="si">}</span><span class="s2">):"</span><span class="p">)</span>
    <span class="n">salary</span> <span class="o">=</span> <span class="nb">input</span><span class="p">(</span><span class="sa">f</span><span class="s2">"请输入更新的薪水(</span><span class="si">{</span><span class="n">emp</span><span class="p">[</span><span class="s1">'salary'</span><span class="p">]</span><span class="si">}</span><span class="s2">):"</span><span class="p">)</span>
    <span class="n">mobile</span> <span class="o">=</span> <span class="nb">input</span><span class="p">(</span><span class="sa">f</span><span class="s2">"请输入更新的电话(</span><span class="si">{</span><span class="n">emp</span><span class="p">[</span><span class="s1">'mobile'</span><span class="p">]</span><span class="si">}</span><span class="s2">):"</span><span class="p">)</span>
    <span class="k">if</span> <span class="n">name</span><span class="o">!=</span><span class="s1">''</span><span class="p">:</span>
        <span class="n">emp</span><span class="p">[</span><span class="s1">'name'</span><span class="p">]</span> <span class="o">=</span> <span class="n">name</span>
    <span class="k">if</span> <span class="n">salary</span><span class="o">!=</span><span class="s1">''</span><span class="p">:</span>
        <span class="n">emp</span><span class="p">[</span><span class="s1">'salary'</span><span class="p">]</span> <span class="o">=</span> <span class="nb">int</span><span class="p">(</span><span class="n">salary</span><span class="p">)</span>
    <span class="k">if</span> <span class="n">mobile</span><span class="o">!=</span><span class="s1">''</span><span class="p">:</span>
        <span class="n">emp</span><span class="p">[</span><span class="s1">'mobile'</span><span class="p">]</span> <span class="o">=</span> <span class="n">mobile</span>
    <span class="n">suc_msg</span><span class="p">(</span><span class="s2">"更新员工成功!"</span><span class="p">)</span>

<span class="k">def</span><span class="w"> </span><span class="nf">main</span><span class="p">():</span>
    <span class="k">while</span><span class="p">(</span><span class="kc">True</span><span class="p">):</span>
        <span class="n">show_operator</span><span class="p">()</span>
        <span class="n">op</span> <span class="o">=</span> <span class="nb">input</span><span class="p">()</span>
        <span class="k">if</span> <span class="n">op</span><span class="o">==</span><span class="s1">'Q'</span><span class="p">:</span>
            <span class="k">break</span><span class="p">;</span>
        <span class="k">elif</span> <span class="n">op</span><span class="o">==</span><span class="s1">'A'</span><span class="p">:</span>
            <span class="n">add_emp</span><span class="p">()</span>
        <span class="k">elif</span> <span class="n">op</span><span class="o">==</span><span class="s1">'L'</span><span class="p">:</span>
            <span class="n">list_emp</span><span class="p">()</span>
        <span class="k">elif</span> <span class="n">op</span><span class="o">==</span><span class="s1">'D'</span><span class="p">:</span>
            <span class="n">del_emp</span><span class="p">()</span>
        <span class="k">elif</span> <span class="n">op</span><span class="o">==</span><span class="s1">'U'</span><span class="p">:</span>
            <span class="n">update_emp</span><span class="p">()</span>
        <span class="k">else</span><span class="p">:</span>
            <span class="n">error_msg</span><span class="p">(</span><span class="s2">"请选择正确的操作!"</span><span class="p">)</span>
<span class="n">emp</span> <span class="o">=</span><span class="p">{</span><span class="s2">"eno"</span><span class="p">:</span><span class="s1">'12311'</span><span class="p">,</span><span class="s1">'name'</span><span class="p">:</span><span class="s1">'张三'</span><span class="p">,</span><span class="s1">'salary'</span><span class="p">:</span><span class="mi">1000</span><span class="p">,</span><span class="s1">'mobile'</span><span class="p">:</span><span class="s1">'123123123'</span><span class="p">}</span> 
<span class="c1"># show_title()</span>
<span class="c1"># show_data(emp)</span>
<span class="n">main</span><span class="p">()</span>
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<pre>请选择一个具体的操作:添加(A)|删除(D)|更新(U)|列表(L)|退出(Q)
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<pre>----------------------------------------------------&gt;添加员工成功&lt;----------------------------------------------------
请选择一个具体的操作:添加(A)|删除(D)|更新(U)|列表(L)|退出(Q)
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<pre>编号        姓名        薪水        联系电话           
001         张三        1000       19332323223    
请选择一个具体的操作:添加(A)|删除(D)|更新(U)|列表(L)|退出(Q)
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<pre>----------------------------------------------------&gt;更新员工成功!&lt;----------------------------------------------------
请选择一个具体的操作:添加(A)|删除(D)|更新(U)|列表(L)|退出(Q)
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<pre>编号        姓名        薪水        联系电话           
001         李四        1000       123123123      
请选择一个具体的操作:添加(A)|删除(D)|更新(U)|列表(L)|退出(Q)
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<pre>----------------------------------------------------&gt;删除员工成功！&lt;----------------------------------------------------
请选择一个具体的操作:添加(A)|删除(D)|更新(U)|列表(L)|退出(Q)
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<pre>编号        姓名        薪水        联系电话           
请选择一个具体的操作:添加(A)|删除(D)|更新(U)|列表(L)|退出(Q)
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<h2 id="7%E3%80%81%E5%AD%97%E7%AC%A6%E4%B8%B2">7、字符串<a class="anchor-link" href="#7%E3%80%81%E5%AD%97%E7%AC%A6%E4%B8%B2">¶</a></h2><h3 id="7.1%E3%80%81%E5%AD%97%E7%AC%A6%E4%B8%B2%E7%9A%84%E5%9F%BA%E6%9C%AC%E6%93%8D%E4%BD%9C">7.1、字符串的基本操作<a class="anchor-link" href="#7.1%E3%80%81%E5%AD%97%E7%AC%A6%E4%B8%B2%E7%9A%84%E5%9F%BA%E6%9C%AC%E6%93%8D%E4%BD%9C">¶</a></h3>
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<div class="jp-InputPrompt jp-InputArea-prompt">In [6]:</div>
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<div class="highlight hl-ipython3"><pre><span></span><span class="n">s1</span> <span class="o">=</span> <span class="s1">'1001'</span>
<span class="n">s2</span> <span class="o">=</span> <span class="s1">'1001'</span>
<span class="c1"># s1[0] = '2' #字符串是个常量,不能修改里面的元素，执行+法之后，是新分类了一块内存</span>
<span class="nb">print</span><span class="p">(</span><span class="nb">id</span><span class="p">(</span><span class="n">s1</span><span class="p">),</span><span class="nb">id</span><span class="p">(</span><span class="n">s2</span><span class="p">))</span>
<span class="n">s3</span> <span class="o">=</span> <span class="s1">'100'</span>
<span class="nb">print</span><span class="p">(</span><span class="nb">id</span><span class="p">(</span><span class="n">s3</span><span class="p">))</span>
<span class="n">s3</span><span class="o">+=</span><span class="s1">'1'</span> <span class="c1">#其实是新分配了一块内存</span>
<span class="nb">print</span><span class="p">(</span><span class="n">s3</span><span class="p">)</span>
<span class="c1">#s3和s1和s2是不一样的 </span>
<span class="nb">print</span><span class="p">(</span><span class="nb">id</span><span class="p">(</span><span class="n">s1</span><span class="p">),</span><span class="nb">id</span><span class="p">(</span><span class="n">s2</span><span class="p">),</span><span class="nb">id</span><span class="p">(</span><span class="n">s3</span><span class="p">))</span>
<span class="n">s4</span> <span class="o">=</span> <span class="s1">'1001'</span>
<span class="nb">print</span><span class="p">(</span><span class="nb">id</span><span class="p">(</span><span class="n">s4</span><span class="p">))</span>
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<pre>1753516392112 1753516392112
1753518877424
1001
1753516392112 1753516392112 1753522566448
1753516392112
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<div class="jp-InputPrompt jp-InputArea-prompt">In [7]:</div>
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<div class="highlight hl-ipython3"><pre><span></span><span class="k">def</span><span class="w"> </span><span class="nf">swap</span><span class="p">(</span><span class="n">a</span><span class="p">,</span><span class="n">b</span><span class="p">):</span>
    <span class="n">a</span><span class="p">,</span><span class="n">b</span> <span class="o">=</span> <span class="n">b</span><span class="p">,</span><span class="n">a</span>
<span class="n">s1</span> <span class="o">=</span> <span class="s1">'abc'</span>
<span class="n">s2</span> <span class="o">=</span> <span class="s1">'bcd'</span>
<span class="n">swap</span><span class="p">(</span><span class="n">s1</span><span class="p">,</span><span class="n">s2</span><span class="p">)</span><span class="c1">#字符串是不可变类型，类似于int这些，所以不会交换</span>
<span class="nb">print</span><span class="p">(</span><span class="n">s1</span><span class="p">,</span><span class="n">s2</span><span class="p">)</span>
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<pre>abc bcd
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<h3 id="7.2%E3%80%81%E5%AD%97%E7%AC%A6%E4%B8%B2%E7%9A%84%E5%B8%B8%E7%94%A8%E6%93%8D%E4%BD%9C">7.2、字符串的常用操作<a class="anchor-link" href="#7.2%E3%80%81%E5%AD%97%E7%AC%A6%E4%B8%B2%E7%9A%84%E5%B8%B8%E7%94%A8%E6%93%8D%E4%BD%9C">¶</a></h3><p>字符串的操作和元组基本类似</p>
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<div class="jp-InputPrompt jp-InputArea-prompt">In [16]:</div>
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<div class="highlight hl-ipython3"><pre><span></span><span class="n">s1</span> <span class="o">=</span> <span class="s1">'hello'</span>
<span class="nb">print</span><span class="p">(</span><span class="nb">len</span><span class="p">(</span><span class="n">s1</span><span class="p">))</span>
<span class="nb">print</span><span class="p">(</span><span class="n">s1</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span><span class="nb">id</span><span class="p">(</span><span class="n">s1</span><span class="p">))</span>
<span class="k">for</span> <span class="n">s</span> <span class="ow">in</span> <span class="n">s1</span><span class="p">:</span>
    <span class="nb">print</span><span class="p">(</span><span class="n">s</span><span class="p">)</span>
<span class="n">s1</span><span class="o">+=</span><span class="s1">''</span>
<span class="nb">print</span><span class="p">(</span><span class="n">s1</span><span class="p">,</span><span class="nb">id</span><span class="p">(</span><span class="n">s1</span><span class="p">))</span>
<span class="nb">print</span><span class="p">(</span><span class="s1">'he'</span> <span class="ow">in</span> <span class="n">s1</span><span class="p">)</span><span class="c1">#判断he是否在字符中</span>
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<pre>5
h 1753487614384
h
e
l
l
o
hello 1753487614384
False
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<h3 id="7.3%E3%80%81%E5%AD%97%E7%AC%A6%E4%B8%B2%E7%9A%84%E5%B8%B8%E7%94%A8%E6%96%B9%E6%B3%95">7.3、字符串的常用方法<a class="anchor-link" href="#7.3%E3%80%81%E5%AD%97%E7%AC%A6%E4%B8%B2%E7%9A%84%E5%B8%B8%E7%94%A8%E6%96%B9%E6%B3%95">¶</a></h3><h4 id="7.3.1%E3%80%81%E5%AD%97%E7%AC%A6%E4%B8%B2%E7%9A%84%E6%9F%A5%E6%89%BE">7.3.1、字符串的查找<a class="anchor-link" href="#7.3.1%E3%80%81%E5%AD%97%E7%AC%A6%E4%B8%B2%E7%9A%84%E6%9F%A5%E6%89%BE">¶</a></h4>
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<div class="highlight hl-ipython3"><pre><span></span><span class="n">s</span> <span class="o">=</span> <span class="s1">'hello world'</span>
<span class="nb">print</span><span class="p">(</span><span class="n">s</span><span class="o">.</span><span class="n">index</span><span class="p">(</span><span class="s1">'ll'</span><span class="p">))</span> <span class="c1">#找子串的位置</span>
<span class="c1"># print(s.index('aa')) #如果没有找到会抛出异常</span>
<span class="nb">print</span><span class="p">(</span><span class="n">s</span><span class="o">.</span><span class="n">find</span><span class="p">(</span><span class="s1">'aa'</span><span class="p">))</span> <span class="c1">#如果没有找到会返回-1</span>
<span class="nb">print</span><span class="p">(</span><span class="n">s</span><span class="o">.</span><span class="n">find</span><span class="p">(</span><span class="s1">'l'</span><span class="p">))</span>
<span class="nb">print</span><span class="p">(</span><span class="n">s</span><span class="o">.</span><span class="n">rfind</span><span class="p">(</span><span class="s1">'l'</span><span class="p">))</span>
<span class="n">file</span> <span class="o">=</span> <span class="s1">'hello.java'</span>
<span class="c1">#获取文件类型</span>
<span class="n">index</span> <span class="o">=</span> <span class="n">file</span><span class="o">.</span><span class="n">rfind</span><span class="p">(</span><span class="s1">'.'</span><span class="p">)</span>
<span class="nb">print</span><span class="p">(</span><span class="n">file</span><span class="p">[</span><span class="n">index</span><span class="o">+</span><span class="mi">1</span><span class="p">:])</span>
<span class="nb">print</span><span class="p">(</span><span class="n">file</span><span class="o">.</span><span class="n">endswith</span><span class="p">(</span><span class="s1">'.java'</span><span class="p">))</span> <span class="c1">#是否以.java结束</span>
<span class="nb">print</span><span class="p">(</span><span class="n">file</span><span class="o">.</span><span class="n">startswith</span><span class="p">(</span><span class="s1">'he2ll'</span><span class="p">))</span><span class="c1">#是否以某个字符串开始</span>
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<pre>2
-1
2
9
java
True
False
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<h4 id="7.3.2%E3%80%81%E5%AD%97%E7%AC%A6%E4%B8%B2%E7%9A%84%E5%A4%A7%E5%B0%8F%E5%86%99%E6%93%8D%E4%BD%9C">7.3.2、字符串的大小写操作<a class="anchor-link" href="#7.3.2%E3%80%81%E5%AD%97%E7%AC%A6%E4%B8%B2%E7%9A%84%E5%A4%A7%E5%B0%8F%E5%86%99%E6%93%8D%E4%BD%9C">¶</a></h4>
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<div class="jp-InputPrompt jp-InputArea-prompt">In [33]:</div>
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<div class="highlight hl-ipython3"><pre><span></span><span class="n">s1</span> <span class="o">=</span> <span class="s1">'hello YES'</span>
<span class="c1">#upper之后的结果是生成一个新的字符串，原来的字符串不会修改</span>
<span class="nb">print</span><span class="p">(</span><span class="n">s1</span><span class="o">.</span><span class="n">upper</span><span class="p">(),</span><span class="n">s1</span><span class="p">)</span>
<span class="n">s2</span> <span class="o">=</span> <span class="n">s1</span><span class="o">.</span><span class="n">lower</span><span class="p">()</span> <span class="c1">#转换为小写</span>
<span class="nb">print</span><span class="p">(</span><span class="n">s2</span><span class="p">,</span><span class="n">s1</span><span class="p">)</span>
<span class="n">s3</span> <span class="o">=</span> <span class="n">s1</span><span class="o">.</span><span class="n">swapcase</span><span class="p">()</span> <span class="c1">#大小写交换</span>
<span class="nb">print</span><span class="p">(</span><span class="n">s3</span><span class="p">)</span>
<span class="n">s1</span> <span class="o">=</span> <span class="s2">"good good study,day day up"</span>
<span class="n">s1</span> <span class="o">=</span> <span class="s1">'好好学习，天天向上'</span>
<span class="n">s2</span> <span class="o">=</span> <span class="n">s1</span><span class="o">.</span><span class="n">title</span><span class="p">()</span> <span class="c1">#把第一个字母改成大写</span>
<span class="nb">print</span><span class="p">(</span><span class="n">s2</span><span class="p">)</span>
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<pre>HELLO YES hello YES
hello yes hello YES
HELLO yes
好好学习，天天向上
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<h4 id="7.3.3%E3%80%81%E5%AD%97%E7%AC%A6%E4%B8%B2%E7%9A%84%E5%88%86%E5%89%B2%E5%92%8C%E6%9B%BF%E6%8D%A2">7.3.3、字符串的分割和替换<a class="anchor-link" href="#7.3.3%E3%80%81%E5%AD%97%E7%AC%A6%E4%B8%B2%E7%9A%84%E5%88%86%E5%89%B2%E5%92%8C%E6%9B%BF%E6%8D%A2">¶</a></h4>
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<div class="highlight hl-ipython3"><pre><span></span><span class="n">s3</span> <span class="o">=</span> <span class="s1">'hello world yes ok'</span>
<span class="n">lst</span> <span class="o">=</span> <span class="n">s3</span><span class="o">.</span><span class="n">split</span><span class="p">()</span><span class="c1">#默认就是空格分割</span>
<span class="nb">print</span><span class="p">(</span><span class="n">lst</span><span class="p">)</span>
<span class="n">s4</span> <span class="o">=</span> <span class="s1">'1,2,3,4'</span>
<span class="nb">print</span><span class="p">(</span><span class="n">s4</span><span class="o">.</span><span class="n">split</span><span class="p">(</span><span class="s1">','</span><span class="p">))</span>
<span class="nb">print</span><span class="p">(</span><span class="n">s4</span><span class="o">.</span><span class="n">split</span><span class="p">(</span><span class="n">sep</span><span class="o">=</span><span class="s1">','</span><span class="p">))</span><span class="c1">#也是可以分割的</span>
<span class="nb">print</span><span class="p">(</span><span class="n">s4</span><span class="o">.</span><span class="n">split</span><span class="p">(</span><span class="s1">','</span><span class="p">,</span><span class="n">maxsplit</span><span class="o">=</span><span class="mi">2</span><span class="p">))</span><span class="c1">#表示最多分割2次</span>
<span class="n">filepath</span> <span class="o">=</span> <span class="s1">'d:/test/aa/bb/cc/Hello.py'</span>
<span class="nb">print</span><span class="p">(</span><span class="n">filepath</span><span class="o">.</span><span class="n">rsplit</span><span class="p">(</span><span class="s2">"/"</span><span class="p">,</span><span class="n">maxsplit</span><span class="o">=</span><span class="mi">1</span><span class="p">))</span> <span class="c1">#通过一行代码讲文件和文件路径都取出来</span>
<span class="n">s5</span> <span class="o">=</span> <span class="s1">'hello,a,a,a,a,a,a'</span>
<span class="n">s6</span> <span class="o">=</span> <span class="n">s5</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="s1">'a'</span><span class="p">,</span><span class="s1">'b'</span><span class="p">)</span>
<span class="nb">print</span><span class="p">(</span><span class="n">s6</span><span class="p">,</span><span class="n">s5</span><span class="p">)</span>
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<pre>['hello', 'world', 'yes', 'ok']
['1', '2', '3', '4']
['1', '2', '3', '4']
['1', '2', '3,4']
['d:/test/aa/bb/cc', 'Hello.py']
hello,b,b,b,b,b,b hello,a,a,a,a,a,a
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<h3 id="7.4%E3%80%81%E5%AD%97%E7%AC%A6%E4%B8%B2%E7%9A%84%E5%88%87%E7%89%87">7.4、字符串的切片<a class="anchor-link" href="#7.4%E3%80%81%E5%AD%97%E7%AC%A6%E4%B8%B2%E7%9A%84%E5%88%87%E7%89%87">¶</a></h3><p>字符串的切片和列表的切片完全一样，切完都是生成一个新的字符串</p>
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<div class="jp-InputPrompt jp-InputArea-prompt">In [46]:</div>
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<div class="highlight hl-ipython3"><pre><span></span><span class="n">s</span> <span class="o">=</span> <span class="s1">'hello world'</span>
<span class="nb">print</span><span class="p">(</span><span class="n">s</span><span class="p">[::</span><span class="o">-</span><span class="mi">1</span><span class="p">])</span>
<span class="nb">print</span><span class="p">(</span><span class="n">s</span><span class="p">[</span><span class="mi">1</span><span class="p">::</span><span class="mi">2</span><span class="p">][::</span><span class="o">-</span><span class="mi">1</span><span class="p">])</span>
<span class="nb">print</span><span class="p">(</span><span class="n">s</span><span class="p">[</span><span class="o">-</span><span class="mi">3</span><span class="p">::</span><span class="o">-</span><span class="mi">2</span><span class="p">])</span>
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<pre>dlrow olleh
lo le
rwolh
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<h3 id="7.5%E3%80%81%E5%AD%97%E7%AC%A6%E4%B8%B2%E7%9A%84%E5%88%A4%E6%96%AD">7.5、字符串的判断<a class="anchor-link" href="#7.5%E3%80%81%E5%AD%97%E7%AC%A6%E4%B8%B2%E7%9A%84%E5%88%A4%E6%96%AD">¶</a></h3>
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<div class="jp-InputPrompt jp-InputArea-prompt">In [55]:</div>
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<div class="highlight hl-ipython3"><pre><span></span><span class="n">s</span> <span class="o">=</span> <span class="s1">'hello python'</span>
<span class="nb">print</span><span class="p">(</span><span class="s1">'1.'</span><span class="p">,</span><span class="n">s</span><span class="o">.</span><span class="n">isidentifier</span><span class="p">())</span> <span class="c1">#是否是合法标识符 False</span>
<span class="nb">print</span><span class="p">(</span><span class="s1">'2.'</span><span class="p">,</span><span class="s1">'hello'</span><span class="o">.</span><span class="n">isidentifier</span><span class="p">())</span>
<span class="nb">print</span><span class="p">(</span><span class="s1">'3.'</span><span class="p">,</span><span class="s1">'张三_'</span><span class="o">.</span><span class="n">isidentifier</span><span class="p">())</span>

<span class="nb">print</span><span class="p">(</span><span class="s1">'     '</span><span class="o">.</span><span class="n">isspace</span><span class="p">())</span> <span class="c1">#是否是所有空白</span>
<span class="nb">print</span><span class="p">(</span><span class="s1">'abcAA'</span><span class="o">.</span><span class="n">isalpha</span><span class="p">())</span> <span class="c1">#是否全部是字符</span>
<span class="nb">print</span><span class="p">(</span><span class="s1">'abc.'</span><span class="o">.</span><span class="n">isalpha</span><span class="p">())</span> <span class="c1">#是否全部是字符</span>

<span class="nb">print</span><span class="p">(</span><span class="s1">'123'</span><span class="o">.</span><span class="n">isdecimal</span><span class="p">())</span><span class="c1">#是否是十进制的数字组成</span>

<span class="nb">print</span><span class="p">(</span><span class="s1">'一二壹'</span><span class="o">.</span><span class="n">isnumeric</span><span class="p">())</span><span class="c1">#是否是数字，True</span>
<span class="nb">print</span><span class="p">(</span><span class="s1">'abc123一'</span><span class="o">.</span><span class="n">isalnum</span><span class="p">())</span> <span class="c1">#是否是数字和字母</span>
<span class="n">s1</span><span class="o">=</span> <span class="s1">'   a   a   '</span><span class="p">;</span>
<span class="nb">print</span><span class="p">(</span><span class="n">s1</span><span class="o">.</span><span class="n">strip</span><span class="p">()</span><span class="o">+</span><span class="s2">"|"</span><span class="p">)</span> <span class="c1">#去除前后的空格</span>
<span class="nb">print</span><span class="p">(</span><span class="n">s1</span><span class="o">.</span><span class="n">rstrip</span><span class="p">()</span><span class="o">+</span><span class="s2">"|"</span><span class="p">)</span> <span class="c1">#去除右边的空格</span>
<span class="nb">print</span><span class="p">(</span><span class="n">s1</span><span class="o">.</span><span class="n">lstrip</span><span class="p">()</span><span class="o">+</span><span class="s2">"|"</span><span class="p">)</span> <span class="c1">#去除左边的空格</span>
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<pre>1. False
2. True
3. True
True
True
False
True
True
True
a   a|
   a   a|
a   a   |
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<h3 id="7.5%E3%80%81%E5%AD%97%E7%AC%A6%E4%B8%B2%E7%9A%84%E6%AF%94%E8%BE%83">7.5、字符串的比较<a class="anchor-link" href="#7.5%E3%80%81%E5%AD%97%E7%AC%A6%E4%B8%B2%E7%9A%84%E6%AF%94%E8%BE%83">¶</a></h3>
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<div class="jp-InputPrompt jp-InputArea-prompt">In [62]:</div>
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<div class="highlight hl-ipython3"><pre><span></span><span class="n">s1</span> <span class="o">=</span> <span class="s1">'apple'</span>
<span class="n">s2</span> <span class="o">=</span> <span class="s1">'app'</span>
<span class="nb">print</span><span class="p">(</span><span class="n">s1</span><span class="o">&gt;</span><span class="n">s2</span><span class="p">)</span>
<span class="n">s3</span> <span class="o">=</span> <span class="s1">'b'</span>
<span class="nb">print</span><span class="p">(</span><span class="n">s1</span><span class="o">&gt;</span><span class="n">s3</span><span class="p">)</span>
<span class="nb">print</span><span class="p">(</span><span class="nb">ord</span><span class="p">(</span><span class="s1">'a'</span><span class="p">),</span><span class="nb">ord</span><span class="p">(</span><span class="s1">'A'</span><span class="p">))</span>
<span class="n">a</span> <span class="o">=</span> <span class="s2">"10"</span>
<span class="n">b</span> <span class="o">=</span> <span class="s1">'10'</span>
<span class="n">c</span> <span class="o">=</span> <span class="s1">'1'</span>
<span class="n">c</span><span class="o">+=</span><span class="s1">'0'</span>
<span class="nb">print</span><span class="p">(</span><span class="n">a</span><span class="o">==</span><span class="n">b</span><span class="p">)</span>
<span class="nb">print</span><span class="p">(</span><span class="n">a</span> <span class="ow">is</span> <span class="n">b</span><span class="p">)</span>
<span class="nb">print</span><span class="p">(</span><span class="n">a</span><span class="o">==</span><span class="n">c</span><span class="p">)</span> <span class="c1">#判断字符串是否相等</span>
<span class="nb">print</span><span class="p">(</span><span class="n">a</span> <span class="ow">is</span> <span class="n">c</span><span class="p">)</span><span class="c1">#判断id是否相等</span>
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<pre>True
False
97 65
True
True
True
False
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<h3 id="7.6%E3%80%81%E6%A0%BC%E5%BC%8F%E5%8C%96%E5%AD%97%E7%AC%A6%E4%B8%B2">7.6、格式化字符串<a class="anchor-link" href="#7.6%E3%80%81%E6%A0%BC%E5%BC%8F%E5%8C%96%E5%AD%97%E7%AC%A6%E4%B8%B2">¶</a></h3>
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<div class="highlight hl-ipython3"><pre><span></span><span class="n">name</span> <span class="o">=</span> <span class="s1">'张三'</span>
<span class="n">age</span> <span class="o">=</span> <span class="mi">20</span>
<span class="nb">print</span><span class="p">(</span><span class="s2">"我叫</span><span class="si">%s</span><span class="s2">,我的年龄是</span><span class="si">%d</span><span class="s2">"</span><span class="o">%</span><span class="p">(</span><span class="n">name</span><span class="p">,</span><span class="n">age</span><span class="p">))</span>
<span class="nb">print</span><span class="p">(</span><span class="s1">'我叫</span><span class="si">%10s</span><span class="s1">'</span><span class="o">%</span><span class="p">(</span><span class="n">name</span><span class="p">))</span>

<span class="nb">print</span><span class="p">(</span><span class="s1">'</span><span class="si">%10d</span><span class="s1">'</span><span class="o">%</span><span class="k">99</span>)
<span class="nb">print</span><span class="p">(</span><span class="s1">'</span><span class="si">%.3f</span><span class="s1">'</span><span class="o">%</span><span class="k">89</span>.323232)
<span class="nb">print</span><span class="p">(</span><span class="s1">'</span><span class="si">%10.3f</span><span class="s1">'</span><span class="o">%</span><span class="k">3</span>.1415926111)#占10位的长度，保留三个字符
<span class="nb">print</span><span class="p">(</span><span class="s1">'</span><span class="si">{:^10.3f}</span><span class="s1">'</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="mf">12.33333</span><span class="p">))</span>
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<pre>我叫张三,我的年龄是20
我叫        张三
        99
89.323
     3.142
  12.333  
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<h2 id="8%E3%80%81%E9%9D%A2%E5%90%91%E5%AF%B9%E8%B1%A1">8、面向对象<a class="anchor-link" href="#8%E3%80%81%E9%9D%A2%E5%90%91%E5%AF%B9%E8%B1%A1">¶</a></h2><h3 id="8.1%E3%80%81%E9%9D%A2%E5%90%91%E5%AF%B9%E8%B1%A1%E5%9F%BA%E7%A1%80">8.1、面向对象基础<a class="anchor-link" href="#8.1%E3%80%81%E9%9D%A2%E5%90%91%E5%AF%B9%E8%B1%A1%E5%9F%BA%E7%A1%80">¶</a></h3>
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<div class="highlight hl-ipython3"><pre><span></span><span class="k">class</span><span class="w"> </span><span class="nc">Dog</span><span class="p">:</span>
    <span class="k">def</span><span class="w"> </span><span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span><span class="n">name</span><span class="p">,</span><span class="n">age</span><span class="p">):</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">name</span> <span class="o">=</span> <span class="n">name</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">age</span> <span class="o">=</span> <span class="n">age</span>

    <span class="k">def</span><span class="w"> </span><span class="nf">bark</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
        <span class="c1"># self.size =22</span>
        <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">age</span><span class="o">&lt;</span><span class="mi">2</span><span class="p">:</span>
            <span class="nb">print</span><span class="p">(</span><span class="sa">f</span><span class="s2">"</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">name</span><span class="si">}</span><span class="s2">:叽叽叽!"</span><span class="p">)</span>
        <span class="k">elif</span> <span class="bp">self</span><span class="o">.</span><span class="n">age</span><span class="o">&lt;</span><span class="mi">11</span><span class="p">:</span>
            <span class="nb">print</span><span class="p">(</span><span class="sa">f</span><span class="s2">"</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">name</span><span class="si">}</span><span class="s2">:旺旺旺!"</span><span class="p">)</span>
        <span class="k">else</span><span class="p">:</span>
            <span class="nb">print</span><span class="p">(</span><span class="sa">f</span><span class="s2">"</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">name</span><span class="si">}</span><span class="s2">:呜呜呜!"</span><span class="p">)</span>

<span class="n">d</span> <span class="o">=</span> <span class="n">Dog</span><span class="p">(</span><span class="s1">'旺财'</span><span class="p">,</span><span class="mi">12</span><span class="p">)</span>
<span class="n">d</span><span class="o">.</span><span class="n">bark</span><span class="p">()</span>
<span class="nb">print</span><span class="p">(</span><span class="nb">id</span><span class="p">(</span><span class="n">d</span><span class="p">),</span><span class="nb">type</span><span class="p">(</span><span class="n">d</span><span class="p">),</span><span class="nb">id</span><span class="p">(</span><span class="n">Dog</span><span class="p">),</span><span class="nb">type</span><span class="p">(</span><span class="n">Dog</span><span class="p">),</span><span class="nb">id</span><span class="p">(</span><span class="n">d</span><span class="o">.</span><span class="n">name</span><span class="p">),</span><span class="nb">type</span><span class="p">(</span><span class="n">d</span><span class="o">.</span><span class="n">name</span><span class="p">))</span>
<span class="n">d1</span> <span class="o">=</span> <span class="n">d</span>
<span class="n">d1</span><span class="o">.</span><span class="n">name</span> <span class="o">=</span> <span class="s1">'小强'</span>
<span class="nb">print</span><span class="p">(</span><span class="nb">id</span><span class="p">(</span><span class="n">d1</span><span class="p">),</span><span class="nb">id</span><span class="p">(</span><span class="n">d</span><span class="p">))</span>
<span class="n">d</span><span class="o">.</span><span class="n">bark</span><span class="p">()</span>
<span class="n">d2</span> <span class="o">=</span> <span class="n">Dog</span><span class="p">(</span><span class="s1">'皮皮'</span><span class="p">,</span><span class="mi">6</span><span class="p">)</span>
<span class="n">d2</span><span class="o">.</span><span class="n">bark</span><span class="p">()</span>
<span class="n">d2</span><span class="o">.</span><span class="n">type</span><span class="o">=</span><span class="s1">'普通'</span>
<span class="nb">print</span><span class="p">(</span><span class="n">d2</span><span class="o">.</span><span class="n">type</span><span class="p">)</span>
<span class="n">d1</span><span class="o">.</span><span class="n">size</span><span class="o">=</span><span class="mi">12</span>
<span class="c1"># print(d1.type)</span>
<span class="nb">print</span><span class="p">(</span><span class="n">d</span><span class="o">.</span><span class="n">size</span><span class="p">)</span>
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<pre>旺财:呜呜呜!
3108185849760 &lt;class '__main__.Dog'&gt; 3108144589168 &lt;class 'type'&gt; 3108175653552 &lt;class 'str'&gt;
3108185849760 3108185849760
小强:呜呜呜!
皮皮:旺旺旺!
普通
12
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<div class="highlight hl-ipython3"><pre><span></span><span class="k">class</span><span class="w"> </span><span class="nc">Person</span><span class="p">:</span>
    <span class="k">def</span><span class="w"> </span><span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span><span class="n">name</span><span class="p">,</span><span class="n">age</span><span class="p">):</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">name</span> <span class="o">=</span> <span class="n">name</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">age</span> <span class="o">=</span> <span class="n">age</span>
    <span class="k">def</span><span class="w"> </span><span class="nf">talk</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
        <span class="nb">print</span><span class="p">(</span><span class="sa">f</span><span class="s2">"</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">name</span><span class="si">}</span><span class="s2">,</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">age</span><span class="si">}</span><span class="s2">"</span><span class="p">)</span>

<span class="nb">print</span><span class="p">(</span><span class="nb">id</span><span class="p">(</span><span class="n">Person</span><span class="p">),</span><span class="nb">type</span><span class="p">(</span><span class="n">Person</span><span class="p">))</span>
<span class="n">p1</span> <span class="o">=</span> <span class="n">Person</span><span class="p">(</span><span class="s2">"张三"</span><span class="p">,</span><span class="mi">22</span><span class="p">)</span>
<span class="nb">print</span><span class="p">(</span><span class="nb">id</span><span class="p">(</span><span class="n">p1</span><span class="p">),</span><span class="nb">type</span><span class="p">(</span><span class="n">p1</span><span class="p">))</span>
<span class="n">p2</span> <span class="o">=</span> <span class="n">p1</span>
<span class="n">p2</span><span class="o">.</span><span class="n">name</span> <span class="o">=</span> <span class="s1">'李四'</span>
<span class="n">p1</span><span class="o">.</span><span class="n">talk</span><span class="p">()</span>
<span class="n">p2</span><span class="o">.</span><span class="n">talk</span><span class="p">()</span>
<span class="n">p3</span> <span class="o">=</span> <span class="n">Person</span><span class="p">(</span><span class="s1">'王五'</span><span class="p">,</span><span class="mi">44</span><span class="p">)</span>
<span class="n">p1</span><span class="o">.</span><span class="n">money</span> <span class="o">=</span> <span class="mi">1000</span>
<span class="nb">print</span><span class="p">(</span><span class="nb">dir</span><span class="p">(</span><span class="n">p1</span><span class="p">))</span>
<span class="nb">print</span><span class="p">(</span><span class="nb">dir</span><span class="p">(</span><span class="n">p3</span><span class="p">))</span>
<span class="nb">print</span><span class="p">(</span><span class="nb">dir</span><span class="p">(</span><span class="n">Person</span><span class="p">))</span>
<span class="nb">print</span><span class="p">(</span><span class="nb">id</span><span class="p">(</span><span class="n">p1</span><span class="o">.</span><span class="n">talk</span><span class="p">),</span><span class="nb">type</span><span class="p">(</span><span class="n">p1</span><span class="o">.</span><span class="n">talk</span><span class="p">))</span>
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<pre>3108144577840 &lt;class 'type'&gt;
3108191861248 &lt;class '__main__.Person'&gt;
李四,22
李四,22
['__class__', '__delattr__', '__dict__', '__dir__', '__doc__', '__eq__', '__format__', '__ge__', '__getattribute__', '__gt__', '__hash__', '__init__', '__init_subclass__', '__le__', '__lt__', '__module__', '__ne__', '__new__', '__reduce__', '__reduce_ex__', '__repr__', '__setattr__', '__sizeof__', '__str__', '__subclasshook__', '__weakref__', 'age', 'money', 'name', 'talk']
['__class__', '__delattr__', '__dict__', '__dir__', '__doc__', '__eq__', '__format__', '__ge__', '__getattribute__', '__gt__', '__hash__', '__init__', '__init_subclass__', '__le__', '__lt__', '__module__', '__ne__', '__new__', '__reduce__', '__reduce_ex__', '__repr__', '__setattr__', '__sizeof__', '__str__', '__subclasshook__', '__weakref__', 'age', 'name', 'talk']
['__class__', '__delattr__', '__dict__', '__dir__', '__doc__', '__eq__', '__format__', '__ge__', '__getattribute__', '__gt__', '__hash__', '__init__', '__init_subclass__', '__le__', '__lt__', '__module__', '__ne__', '__new__', '__reduce__', '__reduce_ex__', '__repr__', '__setattr__', '__sizeof__', '__str__', '__subclasshook__', '__weakref__', 'talk']
3108191552832 &lt;class 'method'&gt;
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<h3 id="8.2%E3%80%81%E7%B1%BB%E5%B1%9E%E6%80%A7%E5%92%8C%E7%B1%BB%E6%96%B9%E6%B3%95">8.2、类属性和类方法<a class="anchor-link" href="#8.2%E3%80%81%E7%B1%BB%E5%B1%9E%E6%80%A7%E5%92%8C%E7%B1%BB%E6%96%B9%E6%B3%95">¶</a></h3>
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<div class="jp-InputPrompt jp-InputArea-prompt">In [27]:</div>
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<div class="highlight hl-ipython3"><pre><span></span><span class="k">class</span><span class="w"> </span><span class="nc">Student</span><span class="p">:</span>
    <span class="n">classroom</span> <span class="o">=</span> <span class="s1">'计算机'</span> <span class="c1">#是类属性，不会存储在对象中</span>
    <span class="k">def</span><span class="w"> </span><span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span><span class="n">name</span><span class="p">,</span><span class="n">no</span><span class="p">):</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">name</span> <span class="o">=</span> <span class="n">name</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">no</span> <span class="o">=</span> <span class="n">no</span>
    <span class="k">def</span><span class="w"> </span><span class="nf">study</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
        <span class="nb">print</span><span class="p">(</span><span class="sa">f</span><span class="s2">"</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">name</span><span class="si">}</span><span class="s2">:</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">no</span><span class="si">}</span><span class="s2">"</span><span class="p">)</span>

    <span class="nd">@classmethod</span><span class="c1">#声明为类方法，这时,cls就表示类，而不是对象</span>
    <span class="k">def</span><span class="w"> </span><span class="nf">show_classroom</span><span class="p">(</span><span class="bp">cls</span><span class="p">):</span>
        <span class="nb">print</span><span class="p">(</span><span class="bp">cls</span><span class="o">.</span><span class="n">classroom</span><span class="p">)</span>
<span class="nb">print</span><span class="p">(</span><span class="nb">dir</span><span class="p">(</span><span class="n">Student</span><span class="p">))</span>

<span class="n">s1</span> <span class="o">=</span> <span class="n">Student</span><span class="p">(</span><span class="s2">"小明"</span><span class="p">,</span><span class="s2">"001"</span><span class="p">)</span>
<span class="n">s2</span> <span class="o">=</span> <span class="n">Student</span><span class="p">(</span><span class="s2">"小张"</span><span class="p">,</span><span class="s1">'002'</span><span class="p">)</span>
<span class="n">s1</span><span class="o">.</span><span class="n">study</span><span class="p">()</span>
<span class="n">s2</span><span class="o">.</span><span class="n">study</span><span class="p">()</span>
<span class="nb">print</span><span class="p">(</span><span class="n">s1</span><span class="o">.</span><span class="n">classroom</span><span class="p">,</span><span class="n">s2</span><span class="o">.</span><span class="n">classroom</span><span class="p">)</span>
<span class="n">s1</span><span class="o">.</span><span class="n">classroom</span> <span class="o">=</span> <span class="s1">'大数据'</span> <span class="c1">#此时为s1创建了一个新的属性</span>
<span class="nb">print</span><span class="p">(</span><span class="n">s1</span><span class="o">.</span><span class="n">classroom</span><span class="p">,</span><span class="n">s2</span><span class="o">.</span><span class="n">classroom</span><span class="p">)</span>
<span class="nb">print</span><span class="p">(</span><span class="nb">id</span><span class="p">(</span><span class="n">Student</span><span class="o">.</span><span class="n">classroom</span><span class="p">),</span><span class="nb">id</span><span class="p">(</span><span class="n">s2</span><span class="o">.</span><span class="n">classroom</span><span class="p">))</span>
<span class="n">Student</span><span class="o">.</span><span class="n">classroom</span> <span class="o">=</span> <span class="s2">"物理学"</span>
<span class="nb">print</span><span class="p">(</span><span class="nb">id</span><span class="p">(</span><span class="n">Student</span><span class="o">.</span><span class="n">classroom</span><span class="p">),</span><span class="nb">id</span><span class="p">(</span><span class="n">s2</span><span class="o">.</span><span class="n">classroom</span><span class="p">))</span><span class="c1">#s2的classroom和Student.classroom指向同一块内存</span>
<span class="nb">print</span><span class="p">(</span><span class="n">s1</span><span class="o">.</span><span class="n">classroom</span><span class="p">,</span><span class="n">s2</span><span class="o">.</span><span class="n">classroom</span><span class="p">)</span>
<span class="n">s2</span><span class="o">.</span><span class="n">classroom</span> <span class="o">=</span> <span class="s1">'汉语言文学'</span>
<span class="nb">print</span><span class="p">(</span><span class="n">s1</span><span class="o">.</span><span class="n">classroom</span><span class="p">,</span><span class="n">s2</span><span class="o">.</span><span class="n">classroom</span><span class="p">,</span><span class="n">Student</span><span class="o">.</span><span class="n">classroom</span><span class="p">)</span>
<span class="c1"># print(dir(s1),dir(s2))</span>
<span class="c1">#结论就是，调用类的方法一定不能使用对象来调用，一定要用类名调用</span>
<span class="n">s1</span><span class="o">.</span><span class="n">show_classroom</span><span class="p">()</span>
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<pre>['__class__', '__delattr__', '__dict__', '__dir__', '__doc__', '__eq__', '__format__', '__ge__', '__getattribute__', '__gt__', '__hash__', '__init__', '__init_subclass__', '__le__', '__lt__', '__module__', '__ne__', '__new__', '__reduce__', '__reduce_ex__', '__repr__', '__setattr__', '__sizeof__', '__str__', '__subclasshook__', '__weakref__', 'classroom', 'show_classroom', 'study']
小明:001
小张:002
计算机 计算机
大数据 计算机
3108185717904 3108185717904
3108180634096 3108180634096
大数据 物理学
大数据 汉语言文学 物理学
物理学
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<h3 id="8.3%E3%80%81%E9%9D%99%E6%80%81%E6%96%B9%E6%B3%95">8.3、静态方法<a class="anchor-link" href="#8.3%E3%80%81%E9%9D%99%E6%80%81%E6%96%B9%E6%B3%95">¶</a></h3><p>静态方法存在的意义是就是给方法归类</p>
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<div class="highlight hl-ipython3"><pre><span></span><span class="k">class</span><span class="w"> </span><span class="nc">Test</span><span class="p">:</span>
    <span class="nd">@staticmethod</span>
    <span class="k">def</span><span class="w"> </span><span class="nf">test1</span><span class="p">():</span>
        <span class="nb">print</span><span class="p">(</span><span class="s2">"test1"</span><span class="p">)</span>

    <span class="nd">@staticmethod</span>
    <span class="k">def</span><span class="w"> </span><span class="nf">test2</span><span class="p">():</span>
        <span class="nb">print</span><span class="p">(</span><span class="s2">"test2"</span><span class="p">)</span>

<span class="n">Test</span><span class="o">.</span><span class="n">test1</span><span class="p">()</span>
<span class="n">Test</span><span class="o">.</span><span class="n">test2</span><span class="p">()</span> 
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<pre>test1
test2
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<h3 id="8.4%E3%80%81%E5%8A%A8%E6%80%81%E7%BB%91%E5%AE%9A%E5%B1%9E%E6%80%A7">8.4、动态绑定属性<a class="anchor-link" href="#8.4%E3%80%81%E5%8A%A8%E6%80%81%E7%BB%91%E5%AE%9A%E5%B1%9E%E6%80%A7">¶</a></h3>
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<div class="highlight hl-ipython3"><pre><span></span><span class="kn">import</span><span class="w"> </span><span class="nn">types</span>
<span class="k">class</span><span class="w"> </span><span class="nc">A</span><span class="p">:</span>
    <span class="k">def</span><span class="w"> </span><span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span><span class="n">a</span><span class="p">):</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">a</span> <span class="o">=</span> <span class="n">a</span>
    <span class="k">def</span><span class="w"> </span><span class="nf">test_a</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
        <span class="nb">print</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">a</span><span class="p">)</span>

<span class="n">a</span> <span class="o">=</span> <span class="n">A</span><span class="p">(</span><span class="mi">10</span><span class="p">)</span>
<span class="n">a</span><span class="o">.</span><span class="n">test_a</span><span class="p">()</span>

<span class="k">def</span><span class="w"> </span><span class="nf">test_b</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
    <span class="nb">print</span><span class="p">(</span><span class="sa">f</span><span class="s1">'test_b:</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">a</span><span class="si">}</span><span class="s1">'</span><span class="p">)</span>
<span class="c1"># test_b('str')</span>
<span class="n">a</span><span class="o">.</span><span class="n">tb</span> <span class="o">=</span> <span class="n">test_b</span> <span class="c1">#并没有动态绑定成功</span>
<span class="nb">print</span><span class="p">(</span><span class="nb">type</span><span class="p">(</span><span class="n">a</span><span class="o">.</span><span class="n">tb</span><span class="p">))</span> <span class="c1">#此时test_a是method对象，而test_b是function</span>
<span class="n">a</span><span class="o">.</span><span class="n">tb</span><span class="p">(</span><span class="n">a</span><span class="p">)</span> <span class="c1">#需要传入self才能调用成功，此时test_b并不是成员方法，如果要变成成员方法，需要使用types.MethodType(test_b, a)</span>

<span class="n">a</span><span class="o">.</span><span class="n">tb1</span> <span class="o">=</span> <span class="n">types</span><span class="o">.</span><span class="n">MethodType</span><span class="p">(</span><span class="n">test_b</span><span class="p">,</span><span class="n">a</span><span class="p">)</span><span class="c1">#动态绑定成功!</span>
<span class="n">a</span><span class="o">.</span><span class="n">tb1</span><span class="p">()</span>
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<pre>10
&lt;class 'function'&gt;
test_b:10
test_b:10
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<h3 id="8.5%E3%80%81%E7%BB%A7%E6%89%BF">8.5、继承<a class="anchor-link" href="#8.5%E3%80%81%E7%BB%A7%E6%89%BF">¶</a></h3>
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<div class="jp-InputPrompt jp-InputArea-prompt">In [5]:</div>
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<div class="highlight hl-ipython3"><pre><span></span><span class="k">class</span><span class="w"> </span><span class="nc">Animal</span><span class="p">:</span>
    <span class="k">def</span><span class="w"> </span><span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span><span class="n">name</span><span class="p">,</span><span class="n">age</span><span class="p">):</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">name</span> <span class="o">=</span> <span class="n">name</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">age</span> <span class="o">=</span> <span class="n">age</span>
    <span class="k">def</span><span class="w"> </span><span class="nf">show</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
        <span class="nb">print</span><span class="p">(</span><span class="sa">f</span><span class="s1">'</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">name</span><span class="si">}</span><span class="s1">:</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">age</span><span class="si">}</span><span class="s1">'</span><span class="p">)</span>

<span class="k">class</span><span class="w"> </span><span class="nc">Dog</span><span class="p">(</span><span class="n">Animal</span><span class="p">):</span>
    <span class="k">def</span><span class="w"> </span><span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span><span class="n">name</span><span class="p">,</span><span class="n">age</span><span class="p">,</span><span class="n">size</span><span class="p">):</span>
        <span class="nb">super</span><span class="p">()</span><span class="o">.</span><span class="fm">__init__</span><span class="p">(</span><span class="n">name</span><span class="p">,</span><span class="n">age</span><span class="p">)</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">size</span> <span class="o">=</span> <span class="n">size</span>

    <span class="k">def</span><span class="w"> </span><span class="nf">show</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
        <span class="nb">super</span><span class="p">()</span><span class="o">.</span><span class="n">show</span><span class="p">()</span>
        <span class="nb">print</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">size</span><span class="p">)</span>

<span class="n">d</span> <span class="o">=</span> <span class="n">Dog</span><span class="p">(</span><span class="s1">'旺财'</span><span class="p">,</span><span class="mi">22</span><span class="p">,</span><span class="s1">'big'</span><span class="p">)</span>
<span class="n">d</span><span class="o">.</span><span class="n">show</span><span class="p">()</span>
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<pre>旺财:22
big
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<div class="jp-InputPrompt jp-InputArea-prompt">In [9]:</div>
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<div class="highlight hl-ipython3"><pre><span></span><span class="k">class</span><span class="w"> </span><span class="nc">A</span><span class="p">:</span>
    <span class="k">def</span><span class="w"> </span><span class="nf">a</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
        <span class="nb">print</span><span class="p">(</span><span class="s1">'A---&gt;a'</span><span class="p">)</span>
    <span class="k">def</span><span class="w"> </span><span class="nf">aa</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
        <span class="nb">print</span><span class="p">(</span><span class="s1">'A---&gt;aa'</span><span class="p">)</span>

<span class="k">class</span><span class="w"> </span><span class="nc">B</span><span class="p">:</span>
    <span class="k">def</span><span class="w"> </span><span class="nf">b</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
        <span class="nb">print</span><span class="p">(</span><span class="s1">'B----b'</span><span class="p">)</span>
    <span class="k">def</span><span class="w"> </span><span class="nf">aa</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
        <span class="nb">print</span><span class="p">(</span><span class="s1">'B---&gt;aa'</span><span class="p">)</span>

<span class="c1">#C先继承A之后继承B</span>
<span class="c1">#先继承先得值，会忽略后面继承的所有信息</span>
<span class="k">class</span><span class="w"> </span><span class="nc">C</span><span class="p">(</span><span class="n">A</span><span class="p">,</span><span class="n">B</span><span class="p">):</span>
    <span class="k">pass</span>

<span class="n">c</span> <span class="o">=</span> <span class="n">C</span><span class="p">()</span>
<span class="n">c</span><span class="o">.</span><span class="n">a</span><span class="p">()</span>
<span class="n">c</span><span class="o">.</span><span class="n">b</span><span class="p">()</span>
<span class="nb">print</span><span class="p">(</span><span class="nb">dir</span><span class="p">(</span><span class="n">c</span><span class="p">))</span>
<span class="n">c</span><span class="o">.</span><span class="n">aa</span><span class="p">()</span>
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<pre>A---&gt;a
B----b
['__class__', '__delattr__', '__dict__', '__dir__', '__doc__', '__eq__', '__format__', '__ge__', '__getattribute__', '__gt__', '__hash__', '__init__', '__init_subclass__', '__le__', '__lt__', '__module__', '__ne__', '__new__', '__reduce__', '__reduce_ex__', '__repr__', '__setattr__', '__sizeof__', '__str__', '__subclasshook__', '__weakref__', 'a', 'aa', 'b']
A---&gt;aa
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<div class="jp-InputPrompt jp-InputArea-prompt">In [10]:</div>
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<div class="highlight hl-ipython3"><pre><span></span><span class="c1">#所有的对象都继承了object</span>
<span class="nb">print</span><span class="p">(</span><span class="nb">dir</span><span class="p">(</span><span class="nb">object</span><span class="p">))</span>
<span class="c1">#默认执行的是A继承于object</span>
<span class="k">class</span><span class="w"> </span><span class="nc">A</span><span class="p">(</span><span class="nb">object</span><span class="p">):</span>
    <span class="k">pass</span>
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<pre>['__class__', '__delattr__', '__dir__', '__doc__', '__eq__', '__format__', '__ge__', '__getattribute__', '__gt__', '__hash__', '__init__', '__init_subclass__', '__le__', '__lt__', '__ne__', '__new__', '__reduce__', '__reduce_ex__', '__repr__', '__setattr__', '__sizeof__', '__str__', '__subclasshook__']
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<div class="jp-InputPrompt jp-InputArea-prompt">In [13]:</div>
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<div class="highlight hl-ipython3"><pre><span></span><span class="k">class</span><span class="w"> </span><span class="nc">CPU</span><span class="p">:</span>
    <span class="k">def</span><span class="w"> </span><span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span><span class="n">name</span><span class="p">,</span><span class="n">band</span><span class="p">):</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">name</span> <span class="o">=</span> <span class="n">name</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">band</span> <span class="o">=</span> <span class="n">band</span>

    <span class="k">def</span><span class="w"> </span><span class="nf">run</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
        <span class="nb">print</span><span class="p">(</span><span class="sa">f</span><span class="s2">"</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">name</span><span class="si">}</span><span class="s2">---&gt;</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">band</span><span class="si">}</span><span class="s2">"</span><span class="p">)</span>

<span class="k">class</span><span class="w"> </span><span class="nc">VideoCard</span><span class="p">:</span>
    <span class="k">def</span><span class="w"> </span><span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span><span class="n">name</span><span class="p">,</span><span class="n">size</span><span class="p">):</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">name</span> <span class="o">=</span> <span class="n">name</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">size</span> <span class="o">=</span> <span class="n">size</span>
    <span class="k">def</span><span class="w"> </span><span class="nf">run</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
        <span class="nb">print</span><span class="p">(</span><span class="sa">f</span><span class="s1">'</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">name</span><span class="si">}</span><span class="s1"> VideoCard'</span><span class="p">)</span>
        <span class="nb">print</span><span class="p">(</span><span class="sa">f</span><span class="s1">'memory:</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">size</span><span class="si">}</span><span class="s1">GB'</span><span class="p">)</span>

<span class="k">class</span><span class="w"> </span><span class="nc">MainBorad</span><span class="p">:</span>
    <span class="k">def</span><span class="w"> </span><span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span><span class="n">name</span><span class="p">,</span><span class="n">cpu</span><span class="p">,</span><span class="n">video_card</span><span class="p">):</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">name</span> <span class="o">=</span> <span class="n">name</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">cpu</span> <span class="o">=</span> <span class="n">cpu</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">video_card</span> <span class="o">=</span> <span class="n">video_card</span>
    <span class="k">def</span><span class="w"> </span><span class="nf">startup</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
        <span class="nb">print</span><span class="p">(</span><span class="sa">f</span><span class="s1">'</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">name</span><span class="si">}</span><span class="s1"> is run'</span><span class="p">)</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">cpu</span><span class="o">.</span><span class="n">run</span><span class="p">()</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">video_card</span><span class="o">.</span><span class="n">run</span><span class="p">()</span>
        <span class="nb">print</span><span class="p">(</span><span class="s1">'win10  start-------'</span><span class="p">)</span>

<span class="n">c1</span> <span class="o">=</span> <span class="n">CPU</span><span class="p">(</span><span class="s1">'intel'</span><span class="p">,</span><span class="s1">'I7'</span><span class="p">)</span>
<span class="n">v1</span> <span class="o">=</span> <span class="n">VideoCard</span><span class="p">(</span><span class="s1">'Nividia'</span><span class="p">,</span><span class="mi">8</span><span class="p">)</span>
<span class="n">mb</span> <span class="o">=</span> <span class="n">MainBorad</span><span class="p">(</span><span class="s1">'华硕'</span><span class="p">,</span><span class="n">c1</span><span class="p">,</span><span class="n">v1</span><span class="p">)</span>
<span class="n">mb</span><span class="o">.</span><span class="n">startup</span><span class="p">()</span>
<span class="nb">print</span><span class="p">(</span><span class="s2">"*"</span><span class="o">*</span><span class="mi">100</span><span class="p">)</span>
<span class="n">c2</span> <span class="o">=</span> <span class="n">CPU</span><span class="p">(</span><span class="s1">'AMD'</span><span class="p">,</span><span class="s1">'毒龙999'</span><span class="p">)</span>
<span class="n">mb</span><span class="o">.</span><span class="n">cpu</span> <span class="o">=</span> <span class="n">c2</span>
<span class="n">mb</span><span class="o">.</span><span class="n">startup</span><span class="p">()</span>
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<pre>华硕 is run
intel---&gt;I7
Nividia VideoCard
memory:8GB
win10  start-------
****************************************************************************************************
华硕 is run
AMD---&gt;毒龙999
Nividia VideoCard
memory:8GB
win10  start-------
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<h3 id="8.6%E3%80%81%E6%B7%B1%E6%8B%B7%E8%B4%9D%E5%92%8C%E6%B5%85%E6%8B%B7%E8%B4%9D">8.6、深拷贝和浅拷贝<a class="anchor-link" href="#8.6%E3%80%81%E6%B7%B1%E6%8B%B7%E8%B4%9D%E5%92%8C%E6%B5%85%E6%8B%B7%E8%B4%9D">¶</a></h3>
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<div class="jp-InputPrompt jp-InputArea-prompt">In [19]:</div>
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<div class="highlight hl-ipython3"><pre><span></span><span class="k">class</span><span class="w"> </span><span class="nc">CPU</span><span class="p">:</span>
    <span class="k">def</span><span class="w"> </span><span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span><span class="n">name</span><span class="p">,</span><span class="n">band</span><span class="p">):</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">name</span> <span class="o">=</span> <span class="n">name</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">band</span> <span class="o">=</span> <span class="n">band</span>

    <span class="k">def</span><span class="w"> </span><span class="nf">run</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
        <span class="nb">print</span><span class="p">(</span><span class="sa">f</span><span class="s2">"</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">name</span><span class="si">}</span><span class="s2">---&gt;</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">band</span><span class="si">}</span><span class="s2">"</span><span class="p">)</span>

<span class="k">class</span><span class="w"> </span><span class="nc">VideoCard</span><span class="p">:</span>
    <span class="k">def</span><span class="w"> </span><span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span><span class="n">name</span><span class="p">,</span><span class="n">size</span><span class="p">):</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">name</span> <span class="o">=</span> <span class="n">name</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">size</span> <span class="o">=</span> <span class="n">size</span>
    <span class="k">def</span><span class="w"> </span><span class="nf">run</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
        <span class="nb">print</span><span class="p">(</span><span class="sa">f</span><span class="s1">'</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">name</span><span class="si">}</span><span class="s1"> VideoCard'</span><span class="p">)</span>
        <span class="nb">print</span><span class="p">(</span><span class="sa">f</span><span class="s1">'memory:</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">size</span><span class="si">}</span><span class="s1">GB'</span><span class="p">)</span>

<span class="k">class</span><span class="w"> </span><span class="nc">MainBorad</span><span class="p">:</span>
    <span class="k">def</span><span class="w"> </span><span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span><span class="n">name</span><span class="p">,</span><span class="n">cpu</span><span class="p">,</span><span class="n">video_card</span><span class="p">):</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">name</span> <span class="o">=</span> <span class="n">name</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">cpu</span> <span class="o">=</span> <span class="n">cpu</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">video_card</span> <span class="o">=</span> <span class="n">video_card</span>
    <span class="k">def</span><span class="w"> </span><span class="nf">startup</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
        <span class="nb">print</span><span class="p">(</span><span class="sa">f</span><span class="s1">'</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">name</span><span class="si">}</span><span class="s1"> is run'</span><span class="p">)</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">cpu</span><span class="o">.</span><span class="n">run</span><span class="p">()</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">video_card</span><span class="o">.</span><span class="n">run</span><span class="p">()</span>
        <span class="nb">print</span><span class="p">(</span><span class="s1">'win10  start-------'</span><span class="p">)</span>
<span class="n">c1</span> <span class="o">=</span> <span class="n">CPU</span><span class="p">(</span><span class="s1">'intel'</span><span class="p">,</span><span class="s1">'I7'</span><span class="p">)</span>
<span class="n">v1</span> <span class="o">=</span> <span class="n">VideoCard</span><span class="p">(</span><span class="s1">'Nividia'</span><span class="p">,</span><span class="mi">8</span><span class="p">)</span>
<span class="n">mb</span> <span class="o">=</span> <span class="n">MainBorad</span><span class="p">(</span><span class="s1">'华硕'</span><span class="p">,</span><span class="n">c1</span><span class="p">,</span><span class="n">v1</span><span class="p">)</span>
<span class="c1"># mb.startup()</span>
<span class="c1"># mb1 = mb #直接进行指针的赋值</span>
<span class="c1"># mb1.name = 'intel'</span>
<span class="c1"># mb.startup()</span>
<span class="kn">import</span><span class="w"> </span><span class="nn">copy</span>
<span class="n">mb1</span> <span class="o">=</span> <span class="n">copy</span><span class="o">.</span><span class="n">copy</span><span class="p">(</span><span class="n">mb</span><span class="p">)</span> <span class="c1">#浅拷贝</span>
<span class="n">mb1</span><span class="o">.</span><span class="n">name</span><span class="o">=</span><span class="s1">'AMD'</span>
<span class="c1">#此时mb1的name换成了AMD,mb并没有换</span>
<span class="n">mb1</span><span class="o">.</span><span class="n">cpu</span><span class="o">.</span><span class="n">band</span> <span class="o">=</span> <span class="s1">'I9'</span>
<span class="n">mb1</span><span class="o">.</span><span class="n">startup</span><span class="p">()</span>
<span class="nb">print</span><span class="p">(</span><span class="s2">"*"</span><span class="o">*</span><span class="mi">100</span><span class="p">)</span>
<span class="n">mb</span><span class="o">.</span><span class="n">startup</span><span class="p">()</span>
<span class="nb">print</span><span class="p">(</span><span class="s2">"*"</span><span class="o">*</span><span class="mi">100</span><span class="p">)</span>
<span class="n">mb2</span> <span class="o">=</span> <span class="n">copy</span><span class="o">.</span><span class="n">deepcopy</span><span class="p">(</span><span class="n">mb</span><span class="p">)</span>
<span class="n">mb2</span><span class="o">.</span><span class="n">name</span> <span class="o">=</span> <span class="s1">'DEll'</span>
<span class="n">mb2</span><span class="o">.</span><span class="n">cpu</span><span class="o">.</span><span class="n">name</span> <span class="o">=</span> <span class="s1">'TEST'</span>
<span class="n">mb2</span><span class="o">.</span><span class="n">startup</span><span class="p">()</span>
<span class="nb">print</span><span class="p">(</span><span class="s2">"*"</span><span class="o">*</span><span class="mi">100</span><span class="p">)</span>
<span class="n">mb</span><span class="o">.</span><span class="n">startup</span><span class="p">()</span>
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<pre>AMD is run
intel---&gt;I9
Nividia VideoCard
memory:8GB
win10  start-------
****************************************************************************************************
华硕 is run
intel---&gt;I9
Nividia VideoCard
memory:8GB
win10  start-------
****************************************************************************************************
DEll is run
TEST---&gt;I9
Nividia VideoCard
memory:8GB
win10  start-------
****************************************************************************************************
华硕 is run
intel---&gt;I9
Nividia VideoCard
memory:8GB
win10  start-------
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<h3 id="8.6%E3%80%81%E7%B1%BB%E7%9A%84%E5%88%9D%E5%A7%8B%E5%8C%96%E9%A1%BA%E5%BA%8F">8.6、类的初始化顺序<a class="anchor-link" href="#8.6%E3%80%81%E7%B1%BB%E7%9A%84%E5%88%9D%E5%A7%8B%E5%8C%96%E9%A1%BA%E5%BA%8F">¶</a></h3>
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<div class="highlight hl-ipython3"><pre><span></span><span class="c1">#所有类都继承于object</span>
<span class="k">class</span><span class="w"> </span><span class="nc">Dog</span><span class="p">:</span>
    <span class="k">def</span><span class="w"> </span><span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span><span class="n">name</span><span class="p">):</span>
        <span class="nb">print</span><span class="p">(</span><span class="sa">f</span><span class="s2">"init被调用id为:</span><span class="si">{</span><span class="nb">id</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span><span class="si">}</span><span class="s2">"</span><span class="p">)</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">name</span> <span class="o">=</span> <span class="n">name</span>
        
    <span class="k">def</span><span class="w"> </span><span class="fm">__new__</span><span class="p">(</span><span class="bp">cls</span><span class="p">,</span><span class="o">*</span><span class="n">args</span><span class="p">,</span><span class="o">**</span><span class="n">kwargs</span><span class="p">):</span>
        <span class="nb">print</span><span class="p">(</span><span class="sa">f</span><span class="s2">"new方法被调用，cls的id为</span><span class="si">{</span><span class="nb">id</span><span class="p">(</span><span class="bp">cls</span><span class="p">)</span><span class="si">}</span><span class="s2">"</span><span class="p">)</span>
        <span class="c1">#super()的父类是object</span>
        <span class="n">obj</span> <span class="o">=</span> <span class="nb">super</span><span class="p">()</span><span class="o">.</span><span class="fm">__new__</span><span class="p">(</span><span class="bp">cls</span><span class="p">)</span>
        <span class="nb">print</span><span class="p">(</span><span class="sa">f</span><span class="s2">"obj被创建:id为</span><span class="si">{</span><span class="nb">id</span><span class="p">(</span><span class="n">obj</span><span class="p">)</span><span class="si">}</span><span class="s2">"</span><span class="p">)</span>
        <span class="c1">#返回对象</span>
        <span class="k">return</span> <span class="n">obj</span>
        
<span class="n">d</span> <span class="o">=</span> <span class="n">Dog</span><span class="p">(</span><span class="s2">"旺财"</span><span class="p">)</span>
<span class="nb">print</span><span class="p">(</span><span class="s2">"*"</span><span class="o">*</span><span class="mi">100</span><span class="p">)</span>
<span class="nb">print</span><span class="p">(</span><span class="sa">f</span><span class="s2">"Dog:</span><span class="si">{</span><span class="nb">id</span><span class="p">(</span><span class="n">Dog</span><span class="p">)</span><span class="si">}</span><span class="s2">"</span><span class="p">)</span>
<span class="nb">print</span><span class="p">(</span><span class="nb">id</span><span class="p">(</span><span class="n">d</span><span class="p">),</span><span class="nb">type</span><span class="p">(</span><span class="n">d</span><span class="p">))</span>
<span class="n">d2</span> <span class="o">=</span> <span class="n">Dog</span><span class="p">(</span><span class="s2">"小强"</span><span class="p">)</span>
<span class="n">d3</span> <span class="o">=</span> <span class="n">d</span> <span class="c1">#没有调用__new__因为只是指针指向d的内存</span>
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<pre>new方法被调用，cls的id为1792751300304
obj被创建:id为1792797067728
init被调用id为:1792797067728
****************************************************************************************************
Dog:1792751300304
1792797067728 &lt;class '__main__.Dog'&gt;
new方法被调用，cls的id为1792751300304
obj被创建:id为1792799551056
init被调用id为:1792799551056
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